VDEM HM GUIDE Flashcards

1
Q

HMT shall demonstrate the following competencies

A

Understand the rules and responsibilities of the HMT when responding to and operating at an incident involving hazardous material/WMD.

Understand the various terms and definitions used by the government agencies to verify and describe hazardous materials.

Understand state, and federal laws and regulations as they apply to emergency operations and the Internet involving hazardous materials/WMD.

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2
Q

Hazmat response, pyramid

A

At the top of the pyramid,
1.you have hazmat incident commander.
2.Hazmat branch management.
3.Hazmat safety officer.

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3
Q

Tier 2 of the hazmat response model

A

Hazmat specialist
Hazmat technician - they take offensive tactics to stop or clean up the product, fix the container, and or protect the environment

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4
Q

Tier 3 the bottom of the hazmat response model includes

A

I HazMat operations and HazMat awareness they take defensive tactics to isolate/evacuate And control product movement

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5
Q

Three major objectives to meet the goals of a hazardous material technician

A

(Analyze-) a hazardous materials incident, to determine the magnitude of the problem in terms of outcomes

(Plan-) a response within the capabilities of available, PPE, and Control equipment

(Implement-)the planned response to favorably change the outcomes, consistent with the organization, standard operating procedures, and or a site safety plan

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6
Q

Resource conservation and recovery act of 1976 RCRA

A

RCRA establish the federal effort in regulating, solid and hazardous waste management

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7
Q

Comprehensive, environmental response, compensation, and liability act of 1980(CERCLA)

A

CERCLA established, super fund hazardous substance cleanup program

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8
Q

Super fund amendments and reauthorization act of 1986 (SARA)

A

Requires OSHA to establish health and safety standards for workers who handle and respond to chemical emergencies

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9
Q

Hazardous materials as found in 49 CFR

United States, Department of transportation, DOT

A

Any, substance or material, which has been determined by the secretary of transportation, to be capable of posing an unreasonable risk to health, safety, and property, when transported in commerce, and which has so been designated.

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10
Q

Hazardous substances is found in 29 CFR

OSHA

A

Any substance designated or listed under paragraph eight through the of the definition exposure to which results may result in adverse effects on the health or safety of employees

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11
Q

Hazardous substances, CFR 40

A

Any substance listed in 40 CFR table 302. For that, when released into environment above a certain amount, must be reported and, depending upon the threat to environment, federal involvement may be authorized.

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12
Q

Extremely hazardous substance US EPA

A

A term used to describe sus substance is listed in 40 CFR, part 355, appendixes, A and B. These chemicals may be subject to emergency planning, and, in the event of a release emergency notification.

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13
Q

Hazardous waste, US EPA

A

A term for chemicals that are regulated under the resource, conservation and recovery act, RCRA 40 CFR, part 261. 33 cradle to grave law,

hazardous waste and transport are regulated by DOT 49 CFR parts 170- 179

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14
Q

Toxic chemicals

A

APA term for chemicals his total omission must be reported annually

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15
Q

Highly hazardous chemicals

A

OSHA time for materials covered under 29, CFR 1910.119

Process safety management

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16
Q

Dangerous goods

A

Term used by transport Canada and the NFPA

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17
Q

Weapons of mass destruction, WMD

A

Any destructive device is defined by section 921 of this title includes explosives, incendiaries and projectiles. Any weapon design intended to cause death or serious bodily injury through the release, dissemination, and or impact of toxic or poisonous chemicals or their precursors.

Any weapon involving biological agent, tocsin or vector.

Any weapon that is designed to release, radiation or radioactivity at a level dangerous to human life

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18
Q

Code of Virginia, 44–146. 34 of the Virginia code.

A

Hazardous materials means, substances or materials, which may pose unreasonable risk to health, safety, property, or the environment, when used, transported, stored, or disposed of, which may include materials, which are solid, liquid, or gas.

Hazardous materials may include the toxic substances, flammable and ignitable materials, explosives, corrosive, materials, and radioactive materials.

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19
Q

Weapon of terrorism, Virginia code title, 18.2–46.4.

A

Any device or material that is designed, intended, or used to cause death, bodily injury, or series, bodily harm, through the release, dissemination, or impact of poisonous chemicals; infections, biological substance; or release of radiation or radioactivity.

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20
Q

The HMT shall demonstrate the following safety competencies

A

No, the basic safety procedures for handling emergency response to a HazMat and WMD incident.

Know the components of hazmat incident, tactical and safety plan and explain what information is included needs component. .

Identify and describe the functional positions and hazmat branch group within the ICS.

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21
Q

Standard safety practices on hazmat events per VDEM

A

Follow SOP‘s. Receiving understand site safety and tactical briefing. Limit exposure to all hazards time distance and shielding.

Maintain communications.
Identify and properly wear appropriate PPE.
Always work with the buddy system.
Always have a back up crew prepared by and standing to assist entry personnel.
Establish and practice strict decontamination procedures.

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22
Q

Safety practices for all VDEM HAZARDOUS MATERIAL TRAINING, PRACTICAL ACTIVITIES

A

Attending understand safety briefing.

Follow all instructor and safety officer directions .

Utilize the required safety equipment as identified and safety briefing

Stay with your assigned group or partner

Immediately report all injuries or problems to your instructor or safety officer

In the event of an emergency during class, the following emergency procedures will be followed:

Emergency signal will sound 35 second Blasts of the airhorn.

All students and instructors will immediately sees all practical activities

All students and instructors will report to the muster point identified in the safety briefing

Personnel will be given further information instructions at that point

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23
Q

HAZWOPER 29, CFR 1910.120.

A

Overview of safety requirements based on hazardous waste operations, emergency response regulations set by OSHA

Emergency response means response, effort by employees from outside the immediate release area, or by other designated responders

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24
Q

Emergency response program to hazardous substance releases (29CFR 1910.120)

A

An emergency response plan so I’ll be developed and implemented to handle anticipate emergencies prior to commencement of emergency response operations.

The plans shall be in writing and available for inspection and copying

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25
Q

Elements of emergency response plan
29 CFR 1910.120

A

Pre-emergency planning in coordination with outside parties

Personnel, rolls, lines of authority, training, and communications

Emergency, recognition and prevention

Safety distances in places of refuge

Site security & control

Evacuation routes and procedures

Decontamination

EMS treatment and first aid

Emergency alert in response procedures

Critique a response and follow up

PPE and emergency equipment

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26
Q

Procedures for handling emergency response
29 CFR 1910.120 (q) (3)

A

 The senior emergency response official responding to an emergency shall
become the individual in charge (IC) of a site-specific incident command system
(ICS).
 The “senior official” at an emergency response is the most senior official on
the site who has the responsibility for controlling the operations at the site.
 Initially it is the senior officer on the first-due piece of responding emergency
apparatus to arrive on the incident scene.
 The IC shall identify all hazards substances or conditions present and shall
address site analysis, use of engineering controls, maximum exposure limits,
hazardous substance handling procedures, and use of new technologies.
 Based on the hazardous substances and/or the conditions present, the
individual in charge of ICS shall:
 Implement appropriate emergency operations
 Assure that the personal protective equipment (PPE) is appropriate for the
hazards

 Employees engaged in emergency operations and exposed to an inhalation
hazard or potential inhalation hazard shall wear positive-pressure self-contained
breathing apparatus (SCBA).
 Limit the number of emergency response personnel at the emergency site, in
those areas of potential or actual exposure to incident or site hazards.
Operations in hazardous areas shall be performed using the buddy system in
groups of two or more.
 Back-up personnel shall be standing by with equipment ready to provide
assistance or rescue. Qualified basic life support personnel, as a minimum, shall
also be standing by with medical equipment and transportation capability.
 The IC shall designate a safety officer with specific responsibility to identify and
evaluate hazards and provide direction with respect to the safety of operations.
 When judged to be an IDLH and/or to involve an imminent danger condition, the
Safety Officer shall have the authority to alter, suspend, or terminate those
activities.
 After emergency operations have terminated, the individual in charge of ICS
shall implement appropriate decontamination procedures.

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27
Q

Medical Surveillance Program
29 CFR 1910.120

A

Purpose - Hazardous materials response personnel may be exposed to high levels of
stress, toxic chemicals, safety hazards, biological hazards, and radiation. For those
individuals who face these life-threatening emergencies, a medical surveillance
program is the cornerstone of an effective hazardous materials responder health and
safety management system. In addition, OSHA 1910.120 requires hazardous
materials employees to participate in a medical surveillance both before and during
employment.

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28
Q

Types of medical examinations are as follows:

A

 Pre-employment screening: Necessary for two reasons:
A determination of fitness for duty, and
Baseline data for future exposures.
Information should include occupational and medical history, physical
examination; tests, including blood and urine; x-rays; ability to perform while
wearing protective clothing.

 Annual medical exams:
To compare sequential medical information with the baseline data to determine
biologic trends that may mark early signs of adverse health effects.
They should include interval medical history: additional medical testing, i.e.
pulmonary function test, hearing test, vision test, blood and urine test when
indicated.

 Termination medical exam:
At the end of employment with a response team, all personnel should have a
medical exam as described in the pre-employment exam. This should account
for the total biological effect accumulated during employment on the team.

Emergency treatment: If, at any time during employment, a team member receives an
acute exposure to either physical or chemical hazards on a site, he/she must be
examined by a physician at the nearest emergency medical facility.
Non-emergency exam: Pre-entry screening, which includes a full set of vitals to include
weight and mental condition. Post-entry screening, which is the same as exam as

Pre-entry screening, is also performed. Medical information from both screenings should be
cross-referenced which each other and past screenings.

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29
Q

Chemical Protective Clothing (CPPE)
29 CFR 1910.120

A

Chemical protective clothing and equipment to be used by HAZMAT team members
shall meet the requirements of paragraph (g) (3) through (5).
 PPE shall be selected and used to protect employees form hazards and
potential hazards as identified during the site characterization and analysis.
 Requires that a Personal Protective Equipment Program shall be established.

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30
Q

Post Emergency Response Operations
29 CFR 1910.120

A

Upon completion of the emergency response if it is deemed necessary to remove
hazardous substances from the site the employer shall comply with all the
requirements of paragraph

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31
Q

Hazardous Material Tactical and Safety Plan

A

The Incident Commander (IC) is responsible to develop and implement the Incident
Action Plan (IAP). Under the overall direction of the IC and to meet the objectives of the
IAP the Hazardous Material Branch Director/Group Supervisor (HMBD) is responsible
to develop and implement the Hazardous Material Tactical and Safety Plan
(HMTSP).The HMTSP should be developed for each incident prior to the
implementation of entry-level tactical control operations. All personnel operating in the
HazMat Branch must be briefed and understand the HMTSP.

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32
Q

Components of the Hazardous Material Tactical and Safety Plan

A
  1. Site Map – is a graphic representation of the incident site. The site map should
    identify critical operational areas and incident facilities. It should include the
    following:

 Control zones - Hot, Warm, Cold
 Work areas
 Decontamination area

Version: March, 2018 Page | 20
 Access control points
 Safe refuge areas
 Hazard areas identified
 Topography/physical layout
 Incident facilities
2. Hazard Analysis – identifies incident hazards and provides a risk analysis of the
hazards on the site.
 Chemical hazards - identify chemical hazards and evaluate the risks associated
with the chemical(s) involved. This should include:
 Chemical name and properties
 Concentration of chemical
 Health hazards - toxicity levels and route of entry
 Fire hazards - degree of combustibility and ignition
potential
 Reactivity hazards - chemical instability and reactivity
with other materials
 Physical hazards - identify other types of hazards and the degree of harm they
present. These should include:
 Energy sources
 Mechanical hazards
 Terrain
 Confined spaces or limited access points

Version: March, 2018 Page | 21
 Weather
3. Safety and Health Considerations – Identify the signs and symptoms of exposure to
hazardous substances and the effects on responder health if they are contaminated
or suffer a chemical injury. Identify the pre-hospital emergency care of
contaminated patients at the basic and advanced life support level. This section
should include:
 Medical personnel with equipment and transportation should be on site.
 Emergency medical procedures to be followed in case of injury or
contamination.
4. Tactical Objectives – Identifies what objectives needs to be accomplished to
control the hazards and protect life, critical systems, the environment and property.
Determines the tactical operations that will be implemented.
 Objectives must be met to mitigate the incident. These would be part of the
action plan, but must be communicated to all responders on-site.
 Standard Operating Procedures. Follow standard operating procedures and
practices at all times.
5. Scene Control Zones
 Based on the type and degree of hazards the criteria to establish control zones
is established.
 Identify the location of hazard area and control zones; Hot, Warm and Cold
zones.
 Identify the access and exit points for the hazard area and tactical operational
areas.
6. Tactical Command Structure
 Presents the ICS organizational chart of the Hazardous Material Branch.

 Identifies HM Branch functions activated and personnel and resources allocated
to each functional position.
7. Site Communications
 Designated radio communications
 Personnel in Hot Zone should have constant communications with HM Branch
Director, HazMat Safety Officer, Entry Supervisor and backup teams. This may
be via radio on designated radio channels or by direct line of sight.
 Emergency communications procedures should be established. These would
include hand signals and horns, bells or sirens.
8. Hazard Monitoring
 Monitoring equipment should be used to identify the types of hazards on site and
to establish the hazard zone area.
 Monitoring of hazards should include toxicity, flammability, oxygen concentration
corrosiveness and radioactivity.
 The monitoring plan should include types of equipment and instruments, location
of monitoring, evaluation of instrument readings, and the criteria for action
levels.
9. PPE - Identify ensemble level and type of protective equipment necessary for
response personnel based on the site analysis and the hazards identified.
10. Decontamination
 All personnel leaving the Hot Zone or those who have been exposed to chemical
hazards shall be properly decontaminated.
 Identify decontaminated locations and stages/procedures of decontamination.

page22

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33
Q

Incident command system that has Matt branch or group

A

Incident command system ICS provides a standard system of managing an emergency incident

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34
Q

ICS functional elements

A

Command – responsible for the overall management of the Internet. Develop an implement strategic decisions approves ordering and release of resources, responsible for incident, safety, staff positions, safety officer, information, officer, and liaison officer.

Operations – responsible for the direct management of all incident tactical activities

Planning- responsible for the collection, evaluation and dissemination of tactical information, including resource status situation, status documentation, and technical specialist

Logistics – responsible for providing all support services to the Internet, including rehabilitation communications supplies, and facilities

Finance – responsible for all financial procurement services, and cost analysis

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35
Q

HazMat branch Director

A

will command and control all personnel working in the hazardous material operation area even over the (incident commander)

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36
Q

HazMat branch

A

Hazmat branch works in the operation section that hazmat branch Director will be responsible to the operation section chief, if activated or the Incident commander. (HM branch established to deal with all tactical operations)

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37
Q

I HazMat branch Director(Group supervisor)

A

The hazmat branch, Director or group supervisor depending on level of ICS activation. Report to the operation section chief or incident commander, and is responsible for the implementation of Internet action plan that deals with tactical control of hazardous material.

Duties included our safety, sight control, research, entry, and decontamination .

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38
Q

HazMat safety officer

A

The hazmat safety officer reports to the Incident safety officer as an assistant, safety officer.

HM safety officer, coordinate safety related activities relating to the hazmat branch and advises hazmat branch officer on all aspects of health and safety. They have the authority to stop or prevent unsafe acts.

.

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39
Q

Sight control supervisor

A

Reports to the hazmat branch Director, and is responsible for the establishment of the control zones and the control of movement of all people and equipment through designated access routes and the control of contaminants.

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40
Q

Research supervisor

A

Reports to hazmat branch Director and provides technical information and advice relative to chemical hazard identifies hazardous materials, collects and interprets information about the physical and chemical hazards to analyze the incident and develop a tactical/safety plan

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41
Q

Entry supervisor

A

Reports in a HazMat branch Director and is responsible for the overall entry operations in the hot zone

-supervise entry
-recommend tactical actions
- carry out tactical assignments
-maintain control of the movement of people in the hot zone
-communicate and coordinate with decon, site control, and research supervisors

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42
Q

Decon supervisor

A

Reports to the hazmat branch directors is responsible for all decontamination functions

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43
Q

HazMat branch chain of command

A
  1. I HazMat branch Director.
  2. Hazmat safety officer.
  3. Site control supervisor, research supervisor, entry supervisor, Decon supervisor.
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44
Q

Organic peroxides

A

Max safe storage temp

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45
Q

Physical states of matter(GAS)

A

Any substance that boils at atmospheric pressure at any temperature less than 80°F

No fixed volume or shape extremely difficult to control and contain

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46
Q

D.O.T -GAS

A

Material with a boiling point below 68°F

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47
Q

Compressed gas

A

Typically used in storage and transportation

Compressed gas is the material in a container as an absolute pressure of 40 psi at 70°F or having an absolute pressure exceeding 104 psi at 130°F or any liquid having a vapor pressure exceeding 40 psi at 100°F

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48
Q

Liquefied compressed gas

A

Gases that become a Liquid in a container at (normal temperature 68°F )

Typically have a pressure between 25 to 2500 psi

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49
Q

Cryogenic gas

A

Liquefied gases with boiling points below -130 Fahrenheit

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50
Q

Liquid

A

Liquid have a fixed volume, but no fixed shape, and will take on the shape of the container. Liquids at any temperature above the freezing point will release vapors.

Liquids become gases at 760 mm/Hg

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51
Q

Molecular weight of air

A

29

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52
Q

How many gases are lighter than air?

A

16 gases float

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53
Q

Solid

A

Salads by definition, I’m not Mobile materials. They have a fixed volume and shape. However, when broken down into powder or dust form, they can be transmitted, five people, the atmosphere, or other carriers.

Some salads are water soluble it can become more hazardous when they coming to contact with liquids or tissues.

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54
Q

Pure substances

A

Homogeneous material having a constant, fixed chemical composition with no impurities. They may be an element or a compound.

I.e. oxygen, chlorine, carbon monoxide, water

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55
Q

Element

A

Simplest form of any substance cannot be decomposed into smaller units and remain that element. The smallest unit of an element is an atom.

I.e. hydrogen, carbon, oxygen, iron, fluorine

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56
Q

Compounds

A

A substance composed of two or more elements in a chemical combination that has a fixed chemical composition

I.e. methane CH4, sodium chloride NaCl, carbon dioxide CO2

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57
Q

Mixture

A

Materials that are made from two or more substances, in varying proportions that are not chemically combined. These materials can be separated from each other by physical or chemical means.(filtering, dissolving, evaporated, etc.)

Hi E – air, kathleen, brass, wood

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58
Q

Solution

A

Uniformly dispersed mixture of one or more substances ( solute) in one or more other substances (solvent)

I.e. – liquid in liquid, alcohol – water, solid in liquid, salt – water, gas in liquid, carbon dioxide in water

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59
Q

Slurry

A

A portable mixture of a solid and a liquid

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60
Q

Physical properties

Boiling point

A

The boiling point is the temperature at which the transition from liquid to gas occurs at this temperature, the vapor pressure of a liquid equals the surrounding atmospheric pressure, so that the liquid rapidly becomes a vapor.

Flammable materials with low boiling points of generally present greater problems with those with high boiling points

IE: the boiling point of acetone is 133°F, and the boiling points for jet fuel range from 400°F to 550°F

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61
Q

Melting point

A

The temperature at which a solid becomes a liquid. Materials with low, melting points, present problems because they melt faster and spread more easily. The reverse is also true. However, if the temperature of a liquid can be lowered, the technician may be able to convert it to a solid.

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62
Q

Sublimation

A

When a substance passes directly from a solid state to vapor state, without passing through a Liquid State, for example, Napthalene used in mothballs.

An increase in temperature increases the rate of sublimation. During an incident, the hazardous materials technician should assess the toxicity and flammability of the vapors of any material that sublimes.

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63
Q

Vapor pressure

A

Vapor pressure is the pressure exerted on the inside of a closed container by the vapor in the space above the liquid in the container.

Products with a high vapor pressure, have a greater potential to breach their containers when heated, since the pressure increases as the temperature rises. Products with high vapor pressures are more volatile.

Vp measured in a few ways

-millimeters or inches of mercury-mmHg/in Hg

-pounds per square inch absolute(Psia)

-atmosphere (atm)

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64
Q

Examples of vapor pressure in common materials

A

Water= 21

Acetone(Propanone)=100

Chlorine = 4800

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65
Q

Critical temperature and pressure

A

Critical temperature and pressure relate to the process of liquefying gases. The critical temperature is a minimum temperature required to liquefy a gas, no matter how much pressure is applied.

The critical pressure is the pressure that must be applied to bring a gas to it’s liquid state

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66
Q

Critical temperature and pressure continued.

A

I guess cannot be liquefied above it’s critical temperature. The lower the critical temperature, the less pressure is required to bring a gas to a liquid state.

If a liquefied gas container exceeds critical temperature, the liquid will convert instantaneously to a gas, which may cause a container to fail violently

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67
Q

Expansion ratio

A

The expansion ratio is the amount of gas produced by a given volume of liquid at a given temperature.

IE: for instance, liquid propane has an expansion ratio of liquid to gas (270 to 1)

While liquefied natural gas has an expansion ratio of (635 to 1).

Obviously, the greater the expansion rate, the more gas is produced, the larger the endangered area becomes.

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68
Q

Vapor density

A

Vapor density is the relative density of a vapor compared to air. The vapor density of air is 1.0.

If a material has a vapor density higher than 1.0, it is heavier than air and we’ll settle.

Toluene, for example, has a vapor density of 3.14, and will settle and pool in low lying areas. If event for density is less than one, it is lighter than air, and will rise and tend to dissipate.

Only 16 (lighter than air HAHAMICE+N)

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69
Q

Specific gravity

A

Specific gravity is the weight of a solid or liquid, compared to an equal volume of water. If the material has a specific gravity, greater than 1.0, and it does not dissolve in water, it will sink. If it’s specific gravity is less than 1.0 it will float on water.

This becomes important when conducting some types of damning or booming operations, and when dealing with flammable liquids.

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70
Q

Solubility

A

The ability of a substance to form a solution with water can be important when determining control methods

For example, gasoline is insoluble, all anhydrous ammonia is soluble

Negligible- less than 0.1%
Slight-0.1 to 1.0%
Moderate- 1 to 10%
Appreciable- more than 10%

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71
Q

Miscibility

A

The term basketball refers to the tendency or ability of two or more liquids to form a uniform blend, or to dissolve in each other. Liquids may be totally miscible, partially miscible, or not miscible at all.

Miscible- will mix

Immiscible- will not mix

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72
Q

Persistence

A

And materials, ability to remain in the environment, chemically unchanged. The more persistent material is, the greater the propensity for it to remain harmful over a period of time.

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73
Q

Temperature of product

A

The temperature of a product or influence the measures taken to control an incident that involves that product. A product temperature may also prevent hazards. An incident involving molten sulfur, for example, raises different sets of concerned than one involving cryogenic material such as liquefied natural gas.

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74
Q

Viscosity

A

A measure of thickness of a liquid, determines how easily it flows. Liquids with high viscosity, such as heavy oil’s, must be heated to increase their fluidity. Liquids that are more viscous tend to flow more slowly, while those that are less viscous will spread more easily. During an incident, liquids that are less viscous are likely to flow away from leaking container, expanding the endangered area.

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75
Q

Volatility

A

Volatility describes the ease with which a liquid compares into the vapor state. The higher and material volatility, the greater its evaporation rate. Vapor pressure is a measure of a liquid propensity to evaporate. Thus, the higher a liquid vapor pressure the more volatile it is. During an incident, a volatile material will disperse in air and expand the endangered area.

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76
Q

Chemistry

A

Chemistry has two basic subdivisions: organic and in organic organic chemistry is based on substances that contain carbon. Organic materials are derived from materials that are or once were living. An example of an organic compound is propane organic materials are significant to the technician, as the majority of them are known to be flammable, and also toxic.

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77
Q

Chemistry of nitrogen

A

Oxygen and other non-carbon materials is the Contant of inorganic chemistry. In organic materials may still contain carbon. However, they lack the characteristic carbon chains found in organic materials. Examples of inorganic material are nitric acid, sodium bicarbonate, and carbon dioxide.

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78
Q

Atomic structure

A

All matter (substances) is made of atoms

Atoms are the building blocks of matter. Adams are composed the three basic units.

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79
Q

Protons

A

Particles that are found in the center, or nucleus, of the atom having a positive charge

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80
Q

Neutrons

A

Particles found in the nucleus, they have no charge

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81
Q

Electrons

A

Particles found in the space surrounding the nucleus, they have a negative charge. These spaces are called the electron shells.

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82
Q

almost all the mass of an atom

A

Is in the nucleus

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83
Q

Electrons are what take part in

A

Chemical bonding and reactions

Adams like to try and fill their electron shells. Depending on the number of electrons associated with an atom, there can be many electron shells.

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84
Q

The number of protons and electrons are normally equal in a stable atom

True or false

A

True

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85
Q

Element

A

An element is a substance of similar atoms with the same atomic number

Elements cannot be broken down further by chemical means. An elements chemical properties of determined by the number of protons in the nucleus and the corresponding number of electrons around the nucleus.

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86
Q

Where are elements found?

A

There are 118 named elements. Of those, 92 are found in nature. The remaining elements are synthetically made in a laboratory.

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87
Q

Isotopes

A

The atoms of an element all have the same number of protons, however, variations in the atomic mass of the atom can occur. When this occurs, the number of protons stays the same, but the number of neutrons changes. When this occurs, the new atom is said to be an isotope of the original Atom or element.

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88
Q

Unstable isotopes

A

Some isotopes are very unstable. As they break down, they release particles and energy, this breakdown is called radioactivity, and the particles and energy released are called radiation.

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89
Q

Ion

A

An atom or radical that has lost, or gained an electron, therefore has acquired an electric charge

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90
Q

Loss of electron

A

Positive charged atom is called a Cation

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91
Q

Gain of electron

A

Negative charged Atom called and Anion

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92
Q

Allotrope

A

The existence of a substance in two or more forms with different physical and chemical properties

IE: carbon existing as a diamond, graphite, and carbon black

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93
Q

Metal

A

An element that conducts heat and electricity as well, has a high physical strength and is ductile and malleable. Medals are to the left of the stairstep line on the periodic table.

Many metals are extremely toxic

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94
Q

Nonmetal

A

An element that does not conduct heat and electricity, has low, physical strength, and there’s neither ductile nor malleable. Nonmetals are to the right of the stairstep line on the periodic table.

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95
Q

Metalloid

A

An element that exhibit general physical properties of both metals and nonmetals

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96
Q

Periodic table

A

The periodic table is organize chart that contains all elements that are nouns exist. The tables are raised in ascending order by the element atomic number. From the table, one can obtain valuable information on elements.

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97
Q

Atomic number

A

The atomic number of an element is the number of protons in its nucleus

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98
Q

Atomic mass

A

The atomic mass is determined by adding together the number of protons and the number of neutrons. This is usually displayed as a decimal number on a periodic table.

Atomic masses are useful for determining relative density of a material and for calculating qualities of reactants for neutralization reactions.

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99
Q

Periods- horizontal rows

A

And a given period, the properties of elements gradually passed from a chemically active metal to chemically active nonmetal nature,

with the last element in the period Being an inert gas.

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100
Q

Groups – vertical columns

A

The group number indicates the number of electrons in the outer shell of the atom. It is significant because it helps describe the activity of the element. Adams will react in such a way as to complete their outer shell;

i.e. two electrons in the first shell and eight electrons in the outer shells. This filling of the outer most shell is called the octet law.

Elements with similar properties are classified together in groups or families. There are four families of significance. The technician needs to recognize.

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101
Q

Element (group 1)

A

The alkali family. Tell him it’s in the family are hydrogen, lithium, sodium, potassium, rubidium, cesium, francium.

Each one has an electron in its outer shell, and has properties similar to the others. All the elements except for hydrogen will explode on contact with water, and our Pyrophoric.

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102
Q

Group 2 elements

A

The alkali earth family. Examples include magnesium, calcium, and radium. These elements have two electrons in the outer shell. These metals are also chemically reactive, but not as reactive as (group1A)

they will decompose in water, and may be explosive and ignite in the air, but only when exposed to heat source

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103
Q

Group 17 elements

A

Halogen family. Examples of our fluorine, Chlorine, and bromine. These elements have seven electrons in the outer shells. They are exceptionally reactive nonmetals, and like oxygen or oxidizers.

In fact, fluorine is a stronger oxidizer than oxygen.

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104
Q

Group 18 elements

A

Noble gas, family, most of these gases exist as a major part of the atmosphere.

These gases are non-reactive.

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105
Q

Chemical properties and behavior

A

Chemical properties of material are those changes that the material is capable of undergoing due to reactions of materials at the atomic level. Chemical properties affect our Atoms interact with each other, and the formation of other compounds.

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106
Q

Chemical reactions

A

A chemical change, which occurs when two or more substances react with each other and produce a different substance or energy, is applied to a substance and a different substance is produced. And a chemical reaction energy is either absorbed or liberated.

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107
Q

chemical reaction in a container

A

The chemical reaction of materials in a container may result in a buildup of heat, an increase in pressure, a corrosive product, or a material that may react, if shot by

(heat, mechanical, or chemical. )Under these conditions, the container may fail.

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108
Q

Ionic bonding

A

A chemical reaction that combines metal elements with nonmetal elements producing a compound called a salt. This type of bonding produced products that are held together by differential electrical charge between the parts (or ions).

Example is table salt, (sodium chloride. )

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109
Q

Covalent bonding

A

A chemical reaction, That combines two nonmetals together. The product is a non-salt. This type of bonding produces products that are held together by sharing of electrons between the parts.

An example is Methane

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110
Q

Developing the chemical hazard profile for incident analysis

A

In order to understand the behaviors of hazardous materials, involve the HMT should research the physical properties and the chemical hazards of the substances, and develop a profile of the chemical hazards

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111
Q

Developing this hazard profile includes

A

1-Identifying the hazard class,
2-evaluating the potential for energy to be released in chemical reactivity,
3-determine the physical state based on boiling point or melting point.
4-Evaluating the fire hazard.
5-Evaluating the health hazards.

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112
Q

Concerns for energy release the HMT must be aware of

A

Explosive that has a class 1

Reactive with other chemicals, including water in there – hazard class 4,5,&8

Polymerization hazard gas hazard class, 2 and 3

Chemically unstable

Radioactive – hazard class number 7

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113
Q

Chemical reactivity hazards

A

Chemical reactivity describes the substances ability to release energy or undergo change. Examples of reactivity include self reactive, water, reactive, or air reactive materials, polymerizing, materials, corrosive, explosive, or radioactive materials

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114
Q

Unstable materials

A

Substances that decompose spontaneously, polymerizes, or otherwise self react in a hazardous manner

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115
Q

Oxidation potential

A

The ability of a material spontaneously react with oxygen from the air, or from a chemical oxidizer at room temperature, without any outside he being applied

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116
Q

Explosive materials

A

Explosive means any substance article, including a device, that is designed to function by explosion (i.e. an extremely rapid release of gas and heat,) or that, by chemical reaction within itself is able to function in similar manner, even if not designed to function by explosion

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117
Q

Detonation

A

A sudden violent release of chemical, mechanical, or nuclear energy from a can find a region; a detonation is propagated by a shockwave and travels at supersonic speed

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118
Q

Deflagration

A

To burn very, very rapidly; the speed of reaction is much faster than an ordinary combustion, but travels much slower than a detonation

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119
Q

Possible hazards of explosives

A

Exposure to heat, shock or contamination, could result in thermal and mechanical hazards

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120
Q

Chemically reactive materials

Instability

A

Materials, a decompose, spontaneously, polymerize, or otherwise self react are generally considered unstable materials. They do not mix with other chemicals to react. The term instability is often used in a changeable with the term reactivity.

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121
Q

Water reactive

A

Materials that one in contact with water will produce flammable or toxic gases, or exothermic reactions or decompose.

For example, most alkali metals will react violently when they come in contact with water. Those metals are so reactive that they do not exist as metals in nature.

The outer electron shell of alkali metals is unstable. Therefore, we ask rapidly and strongly with oxygen molecules in water.

Examples of water, reactive materials, and their by-products

Sodium metal – hydrogen and sodium hydroxide

Calcium carbide – acetylene and calcium hydroxide

Sodium hydride – hydrogen and sodium hydroxide

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122
Q

Pyrophoric materials (air reactive)

A

Pyrophoric materials are those materials that react spontaneously with air. Many scientists and producers of these materials, attempt to make a distinction between a pyrophoric material reacting in clean, dry air, or those that react in moist air.

(Note, when pyrophoric materials react in moist air, it is because the water contact, causing the reaction, therefore, making it water reactive )

White phosphorus.
Uranium. Triethylaluminum. Diethyl zinc. Iron sulfide.

Characteristics – some of these materials made burst into flames; Sunday, decompose, slightly less violently into noxious components, while others may detonate.

I.e.: phosphorus Dash white phosphorus, will spontaneously ignite when exposed to air

White phosphorus.
Uranium.
Triethylaluminum
Di-ethyl zinc
Iron sulfide

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123
Q

Polymerization

A

Polymerization is a chemical reaction in which small molecules combine to form larger molecules. The polymerization process release large amounts of energy that may damage the container.

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124
Q

Monomers

A

The small molecules that are the base unit for the polymerization process.

An example is styrene.

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125
Q

Polymer

A

Large molecules formed from smaller, subunits or monomers.

An example is polystyrene.

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126
Q

Inhibitor

A

An inhibitor is a chemical that is added to a monomer to prevent the chemical reaction. If the inhibitor is released during an incident, an uncontrolled polymerization process can take place that may damage the container.

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127
Q

Catalyst

A

A catalyst is used to speed up the rate of a chemical reaction. If not used properly, a callus can initiate an uncontrolled polymerization process.

Catalyst do not enter into the chemical reaction. (Do not chemically change.)

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128
Q

Chemically unstable materials

A

Organic peroxides
Azides
Fulminates
Nitrate esters
Butyraldehyde

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129
Q

Water reactive materials

A

Metal salts.
Acids.
Bases.
Group 1 elements.

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130
Q

Pyrophoric

A

White phosphorus
Uranium
Triethylaluminum
Di-ethyl zinc
Iron sulfide

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131
Q

Polymerization

A

Acrylonitrile
Propylene
Vinyl chloride
Styrene

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132
Q

Oxidizers

A

Any substance that may enhance or support combustion of other materials, generally by yielding oxygen; that substance that will readily react to, promotes, or initiates combustion, such as the halogens; under certain circumstances may undergo vigorous self sustained decomposition due to contamination or heat exposure

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133
Q

Oxidizer state of matter

A

Oxidizers can be gas, liquid or solid state. They readily and easily release the oxygen atoms in the compound, or are a halogen. Fluorine is the more powerful oxidizer than oxygen.

Oxidizers can be toxic, very sensitive to energy (heat, pressure or shock)

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134
Q

inorganic compounds that are oxidizers

A

There are certain ionic compounds that will readily release oxygen. The basic formula for these oxidizers is:

Metal+nonmetal+ oxygen

Examples:
Sodium hypochlorite – NaCIO

Sodium nitrate - Na2NO3

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135
Q

Peroxides

A

Any compound containing bivalent, oxygen group, peroxide, I am, 0–0 (2 oxygen atoms) they release oxygen readily and are strong oxidizers. Peroxide are a group of hazardous materials that are man-made, not normally occurring in nature, due to their inherent, instability and reactivity. Their use is mainly to initiate or catalyze a polymerization reaction.

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136
Q

Inorganic peroxide

A

compounds that have hydrogen or any metal ionically bonded to a peroxide Ion

Hydrogen peroxide, H-O-O-H

Show me an organic franchise are strong, oxidizes, toxic, and when they come in contact with a combustible material, may burst instantly into flames.

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137
Q

Organic Peroxides

A

Organic compounds that contain the peroxide ion. They are extremely unstable, and the slightest amount of energy may be enough to cause a rapid decomposition with the release of high amounts of energy. Organic peroxides are kept a low temperatures to prevent these bonds from disintegration, which will release energy.

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138
Q

SADT self accelerating decomposition temperature

A

The essay DT is a property of every peroxide. The typical range of an SADT is between 0°F and 50°F. Regardless of the temperature, I have some portion of the material reaches it. Decomposition will begin. Once the decomposition begins, there’s no way to stop it.

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139
Q

Maximum safe storage temperature

A

The highest temperature at which to safely store organic peroxides. When an organic peroxide reaches the temperature above the MSST, the material will decompose and may explode.

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140
Q

Activators

A

When oxidizes come in contact with either an energy or a chemical activator, they may decompose rapidly causing the release of us quantities of oxygen, and possibly heat this breakdown may accelerate the fire of a nearby combustible material. Since Mini oxidizers are metals, toxic gases may be released as well.

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141
Q

Energy activators

A

There are two types of energy activators. The primary activator is heat, and the secondary is pressure. He can be produced either from outside source, or as the material is decomposing. Pressure is produced if the material is contained in a storage vessel. If the material is decomposing, oxygen is being released, and heat is being produced. While this is happening pressure is being built up to the point of container failure.

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142
Q

Chemical activators

A

These materials have the ability to react with oxygen from the air, or some type of oxidizer at normal temperature with no outside heat source being applied. These materials will chemically react with metals and some nonmetals to begin the process of releasing oxygen and heat, causing a hypergolic reaction.

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143
Q

Radioactive material

A

A material containing an isotope that spontaneously admits ionizing radiation

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144
Q

Radioactivity

A

Definition of radiation from an atom due to artificial or natural nuclear breakdown

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145
Q

Radioisotope

(Radionuclide)

A

An isotopic form of an element, (either natural or artificial) that exhibit radioactivity

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146
Q

Radiation

A

The movement of energy through space, or matter, in the form of waves or particles

Alpha, beta, gamma

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147
Q

Non-ionizing radiation

A

This is the type of radiation causes Adams and their bonds to vibrate. This vibration causes friction with the release of heat. Examples of this type of radiation include.

IE: Visible, light infrared, energy, microwaves, and radio waves

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148
Q

Ionizing radiation

A

This is the type of radiation that causes changes in the atomic structure of the atom. These changes include ejection of atomic particles and the release of energy from the atom.

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149
Q

Alpha particles

A

Alpha particles are made up of two protons and two neutrons (a helium nucleus) they are fairly large, slow, moving particles. They travel only a few centimeters in there. Alpha particles present an internal hazard.

Paper or Tyvek can stop alpha particles.

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150
Q

Beta particles

A

Beta particles are composed of electrons that are ejected from the atom. They are smaller and faster than alpha particles. Beta particles can travel several meters in air. Beta particles present both internal and external hazards.

A thick book can stop beta particles

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151
Q

Neutron particles

A

Neutron particles are ejected from the nucleus during radioactive decay. These particles are usually associated with nuclear fission (an atomic bomb detonation or around nuclear reactors) these particles can travel great distances because they have a neutral charge. They present an internal hazard to living tissue.

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152
Q

X-rays

A

X-rays are produced when electrons in an atom move between electron shells. This is considered high energy radiation that presents both an external and internal hazard.

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153
Q

Gamma rays

A

Gamma rays are similar to x-ray, but of greater energy. The main difference between x-rays and gamma rays is that gamma rays originate in the nucleus of the atom and usually follow, alpha or beta decay. Gamma rays present both external and internal hazards.

Several centimeters of concrete or lead is required to stop gamma.

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154
Q

Penetrating effects of radiation

A

See photo

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155
Q

Measures of radioactivity

A

Curie-(CI) unit used to measure radioactivity. 1CI =37 billion disintegrations per second (DPS)

Becquerel-(Bq) metric unit of measure for radioactivity. 1Bq=1 disintegration per second (DPS.)

Specific activity -the activity of radioactive source per mass. Generally measured in curies per gram (Ci/g)

Radioactive half life- the time it takes for an unstable element to lose 1/2 of its radioactivity

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156
Q

Roentgen (R)

A

The amount of gamma radiation that will cause about 2 billion ion pairs and 1 cm³ of dry air. It is the measure of ionization of the molecules in mass of air.

Note, most instruments are read in Roentgens or Roentgens in per hour

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157
Q

Radiation absorbed dose (rad)

A

Relates to the amount of energy actually absorbed in some materials. Equals the energy absorption of 100 ERGS per gram of irradiated material. (An ergs is a measure of work)

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158
Q

Radiation equivalent man (rem)

A

REM measures the radiation affect on the body. Both the dosage of radiation and the potential for harmful effects are taken into account.

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159
Q

For emergency response operations

A

R – rad – rem are roughly equivalent for gamma radiation

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160
Q

Radioactive material labels

There is certain information that is required to be displayed on radioactive material labels. This includes

A

Radioactive active white – one (1 bar) identifies continents that have the lowest level of external radiation hazard

Radioactive yellow – three (3bars) the highest level. These labels DO NOT indicate the amount of internal hazard that the package may contain.

– depending on the level of radiation emitted from the package, radioactive materials will bear one of these three types of labels: radioactive white Dash one, radioactive yellow – two, or radioactive yellow – three.

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161
Q

Radioactive materials and transport

A

Contents, activity in transportation indexed this is the information displayed on the label. The transportation index TI indicates radiation dose rate in milligrams per hour measured at 1 m 3.3 feet. From the surface of the package and indicates the degree of control required by the shipper and determines the number of such packages that are allowed in a vehicle or storage area.

The transportation index or TI is only displayed on yellow two and yellow three labels. The label also indicates the contents and activity.

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162
Q

Corrosive Materials

A

Any substance that causes destruction to living tissue by chemical reaction

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163
Q

Corrosive materials by DOT Specs

A

DOT regulation a liquid or solid that causes destruction to human tissue or a liquid that chemically reacts with steel or aluminum

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164
Q

pH

A

A numerical scale from 0 to 14 years to qualify the city or alkalinity of an aqueous solution with neutrality indicated to 7

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165
Q

Acid

A

Aggressive with a pH of less than seven, a compound that forms hydrogen ions when dissolved in water

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166
Q

Base(Alkaline)

A

A corrosive with a pH of more than 7

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167
Q

Organic acids

A

Can contain carbon. Organic acids or someone in their molecular structure and contain grouping of atoms called a carboxyl group. These tend to be weak acids, and the symbol is abbreviated as see 008, which is combined with other hydrogen and carbon atoms in a chain Orion organic acids can be flammable due to the carbon contact. Organic acids may be explosive a very toxic.

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168
Q

Inorganic acids

A

Do not contain carbon. They are sometimes referred to as mineral acids and are not flammable.

However, these asses off and act as an oxidizing agent that can ignite other combustible materials in a spill. They are also water reactive.

IE: hydrochloric acid – HCL,

sulfuric acid, H2 S04

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169
Q

When dealing with acid products,

A

(Add acid to water), not water to acid

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170
Q

Hazards of acids (organic and inorganic)

A

Corrosive.
Explosive.
Polymerization.
Water reactive.
Toxic.
Oxidizer.
Flammable.
Reactive.
Unstable.

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171
Q

Bases (also referred to as alkali or caustic)

A

Substances that liberate hydroxide anions when dissolved in water. Bases react with acids to form salt and water. Bases have a pH greater than seven and turn litmus paper blue.

Have a bitter taste, and a slippery fill in solution. Bases have the same general property is acids and that they also can damage human tissue and materials, often more than acids.

IE: sodium hydroxide (lye)-NaOH, potassium hydroxide(caustic potash)-KOH

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172
Q

Flammable, gases, liquids, and solids

A

And fire the process of oxidation is the current very quickly while heat and light or released. If the process of oxidation is much faster than a Fire, or the amount of energy released as increase, and explosion occurred. Simply put if we look at the common, every day, fire, matter (fuel) is reacting with the liberation of energy (heat and light)

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173
Q

Flammable, gases, liquids, or solids continued

A

When will productivity, solid, liquid or gas. It’s state has its characteristic physical properties that enable responders to anticipate behavior. Earlier we talked about fire being a chemical process. this we all know, is composed of heat, fuel, and oxygen. All these can present at the same time, but if conditions are not right, then fire will not occur. In order for a substance to burn, it will need some other things to be present.

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174
Q

Flash point

A

Flashpoint is the minimum temperature to which a material must be raised to allow for combustion in the presence of an ignition source

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175
Q

Fire Point

A

In order for sustained combustion to occur, the fire point must be reached. The fire point is usually (1 to 3°F above) flashpoint.

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176
Q

Flammable range

A

flammable range is the percentage of vapor in the air, and was ignition will occur. Flammable range of described in terms of lower and upper flammable limits, also known as lower and upper explosive limit or LEL and UEL.

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177
Q

Ignition temperature (aka autoignition temperature)

A

The minimum temperature with the material must be heated in order to initiate self sustained combustion

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178
Q

Flammable range in ignition temperature explain more

A

Well, the flashpoint of the material is the function of physical characteristics I.E.vapor production, ignition temperature of a chemical change in the material. Molecular bond in the material are broken become subject oxidation. When this oxidation becomes rapid, and heat and light or produced fire as a result.

Larger heavier molecules will typically have lower ignition temperatures than light small chemicals. Animal and vegetable oil’s have a low ignition temperatures and will undergo spontaneous ignition if confined.

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179
Q

Ignition temperature & flashpoint examples

A

Gasoline (87 octane) FP= -36°F/ IT =853°F

Diesel FP = 100°F/ IT = 494°F

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180
Q

Products of combustion

A

All products of combustion, from cigarette smoke to the smoke from a fire involving pesticides, have some toxic effects. Some materials generate more highly toxic products of combustion than others, and appropriate levels of protective clothing and equipment must be used to counter them.

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181
Q

Hydrocarbons in hydrocarbon derivatives

A

Crude oil pump from the ground is a mixture of many molecules. It is a finding a mini usable product or a process called fractional distillation. In this process the molecules are separated, collected at different levels of a fractionating tower, and sent away to be blended into many familiar products. We use

(i.e. gasoline, kerosene, asphalt, fuel oils, and many other liquid petroleum products.)

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182
Q

Hydrocarbons are made up of?

A

Carbon and hydrogen that are covalently bonded to each other

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183
Q

Hydrocarbon families (4)

A

Saturated, unsaturated, aromatic, and halogenated

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184
Q

Saturated hydrocarbons

A

These molecules are saturated with hydrogen atoms. The molecules contain twice as many hydrogen atoms, plus two as they do, carbon atoms, and each bond as a single covalent bond. Most saturated hydrocarbons are heavy, and with the exception of methane have a vapor density greater than one the technical family name for this type of hydrocarbon is alkanes

IE: propane, (C3 H8 -carbons +6 hydrogen +2 hydrogen’s)

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185
Q

Alkanes

A

Or about 60% of all the petroleum oil, and I referred to as petroleum hydrocarbons, or paraffin hydrocarbons. Alkanes are not very reactive, and do not react with strong acids or bases. However, they are able to be oxidized and will burn.

IE: vapor density
methane=0.6
ethane=1.0
propane =1.6
butane=2.0
Hexane=3.0

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186
Q

Unsaturated hydrocarbons

A

The reason some hydrocarbons are called unsaturated because they do not contain as many hydrogens per carbon atom as the saturated hydrocarbons do. Unsaturated hydrocarbons contain multiple bonds between carbon somewhere in the molecular structure. These multiple buns, coupled with relatively low, hydrogen contacts are the reason this type of hydrocarbon is Highly reactive. All are considered toxic. The family groups that make up unsaturated hydrocarbons are (ALKENES and ALKYNES.)

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187
Q

-ene

A

ALKENES are made up of carbons are attached to each other with double covalent bonds. Because of these bonds ALKENES are very reactive. The most frequently encountered ALKENES are Etheline and propylene. Formula for ALKENES is (CnH2n)

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188
Q

-yne

A

ALKYNES are made up of carbon that attaches to each other with triple covalent bonds. These bonds are highly unstable ALKYNES generally do not exist in nature due to their reactivity. The most common ALKYNE is acetylene or ethyne the empirical formula for ALKYNES is. (CnH2n-2)

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189
Q

What happens when ALKENES and ALKYNES come in contact with an oxidizer?

A

A very rapid and intense fire will occur. This is called hypergolic reaction.

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190
Q

Halogenated hydrocarbons

A

These are hydrocarbons in with a hydrogen atom is replaced with a Halogen atom. since all halogens of group VIIA react similarly, and the number of hydrocarbons is so large, there are a very high number of potential halogenated hydrocarbons. How would you needed? Hydrocarbons include flammable, and combustible liquids, liquids, that may not ignite, urethane, foam’s, and fire extinguishing agents. Their materials are toxic.

Methyl Chloride-CH3CI

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191
Q

Flammable (combustible) solids

A

In addition to ordinary combustibles class, if you’re such as wood paper and cotton wool, they are solid materials, that present a significant fire hazard. There are two major types of flammable, solids, combustible elements, and combustible metals.

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192
Q

Other flammable solids

(allotropes)

A

Carbon, phosphorus and sulfur are elements I can burn in addition to having other hazardous characteristics. Carbon in form of Cole is a combustible and in bulk storage may burn so hot that it will break down water to release, hydrogen and oxygen.

There are two types of allotropes of phosphorus that I combustible and hazardous. White phosphorus is unstable at room temperature, has an auto ignition point of 86°F and will spontaneously ignite and dry air red phosphorus sublimates at 781°F and ignites at 500°F .

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193
Q

Sulphur

A

Sulphur melt at 240°F in ignites at 450°F. Once offered Burns the products of combustion a very toxic.

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194
Q

Extinguishing flammable metals

A

Combustible metals present multiple hazards, in addition to burning. The alkali metals such as lithium, sodium and potassium are combustible, water reactive, and the products of combustion are toxic.
other metals, such as magnesium, aluminum, titanium, and there conium will burn in our especially dangerous and powder or dust form as they can ignite
with explosive force.

Because these materials, Burn at a very high temperature, water, and CO2 are not effective extinguishing agent and can break down to release oxygen

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195
Q

Metallic phosphides and carbides

A

There are certain metallic compounds that are combustible, such as the metallic phosphide and metallic carbides. These compounds may also have multiple hazards, such as being toxic and water reactive.

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196
Q

Toxic and poisonous materials

A

All hazardous materials can be toxic in some form. However, there are some chemicals in small quantities that can be extremely hazardous to a persons health:

A poison or toxin is the chemical in relatively small amounts that has the ability to produce injury, by chemical action, where it comes in contact with susceptible tissue

IE: target organs

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197
Q

Effects of toxic poisonous materials

A

Local effect– local affects result in injury, due to localized area on the skin, face, or lindz. It also can affect the throat, lungs, and the digestive tract.

Systemic effect – occurs when the toxicant enters the bloodstream, and will damage many tissues in the body

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198
Q

Types of toxic materials

A

Poisons- substances that are toxic have low levels

Irritant- substance that causes local inflammatory reaction upon contact

Asphyxiants- substances that interfere with the oxygenation of tissue

Simple asphyxiants- these materials, displace oxygen in the atmosphere so that oxygen does not enter the lungs or bloodstream

Chemical asphyxiants-these materials, chemically bond with hemoglobin in the blood and prevent the blood from bonding to red blood cells or from releasing to the cells

Carcinogens - substances that cause cancer in tissue

Biological agents- biological agents, include bacteria, viruses, micro organisms, and their toxins.

Blood agents- chemical compounds containing the cyanide group that prevents the blood from utilizing oxygen

Nerve agents- organophosphates that disrupt the mechanism by which nerves transfer messages to organs

Vesicants (blister agents) - chemicals that cause blistering and burning of tissue upon contact

Riot control agents-chemicals that are irritant

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199
Q

Factors that affect the harmful effects of toxic materials

A

Route of exposure.

Present for a time period.

Contact with a Target organ

Concentrations to cause injury

Ability to cause injury

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200
Q

Routes of exposure for toxic materials

A

Inhalation- the most dangerous and fastest route of entry

Absorption entry of toxic material through the skin or eyes also open cuts or wounds; absorption through the eyes is faster than through the skin

Ingestion-entry through the mouth and direct consumption, make her while breathing or by hand to mouth contact while eating or drinking or smoking

Injection – entry of toxins into the body through mechanical means

201
Q

Contact hazard for toxic materials

A

Chemical burns – burn injuries to tissue caused by chemical contact

Thermal Burns – this is burning of tissue due to exposure to high heat or ultraviolet light conditions

Frostbite – this is the freezing of tissue win in contact with extremely cold materials, such as cryogenics

202
Q

Toxic material, exposure types

Time of exposure

A

Time of exposure to harmful effect of a toxic material, dependent on the concentration of the material, and the length of time to individual is exposed

Chronic exposure -exposure occurred over an extended period of time

Acute exposure to exposure occurs in the body received a large dose of the toxin in a short period of time

203
Q

Threshold, limit value, TLV

A

Term used by American council, government industrial hygienist to Xpress to airborne concentrations of material to. It’s nearly all workers can be exposed day after day without adverse effects.

204
Q

(TLV) Time weighted average TWA

A

This is the maximum concentration averaged over eight hours to which a healthy adult can be repeatedly expose for 8 hours per day 40 hours per week

205
Q

(TLV) Short-term exposure limit STEL

A

The maximum average concentration, averaged over 15 minute period, to its healthy adults can be safely exposed for up to 15 minutes continuously exposure should not occur more than four times in a day with at least one hour between exposures

206
Q

TLV Ceiling

A

This is the maximum concentration to watch a healthy adult can be exposed without risk of injury. Is comparable to ideal age.

exposures to higher concentration should not occur.

207
Q

Permissible exposure limit (PEL)

A

PEL is also called OSHA PEL is the maximum amount of airborne concentration of a substance with a worker can legally be exposed to. Most PELs are defined as substances that are dangerous when inhaled, but some are for substances that are dangerous and absorbed through the skin or eyes PELR sent by OSHA and or illegal workplace exposure limit.

208
Q

Recommended exposure limit REL

A

REL’s are the exposure limits recommended by the national Institute of occupational safety and health NIOSH

REL’s are science base recommendations rather than legal standards. They are based on animal and human studies

209
Q

IDLH. Immediately dangerous to life and health.

A

N iOS 8 defined immediately dangerous to life and health as a situation that possesses the threat of exposure to airborne contaminants, when that exposure is likely to cause death or immediate, or delayed permanent, adverse health effects, or prevent escape from such an environment

Death or harm within 30 minutes

210
Q

LD 50. Lethal dose, 50%.

A

The LD of a substance is a single dose that will cause the death of 50% of a group of test animals exposed to it by any route OTHER THAN INHALATION

211
Q

LC 50. concentration, 50%.

A

The LC is the median lethal concentration of a hazardous material. It is defined as the concentration of a material in air that, on the basis of laboratory tests and halation route, is expected to kill 50% of a group of test animals when administered in specific time period

212
Q

LC Low/LD Low

A

The LC & LD are the lowest concentration

, that will kill one subject of the test population when administered for a specific time.

213
Q

EPRG value

A

The PRG exposure guidelines have been developed by the American industrial hygiene association at a level of concern for evaluating public protective, action options. The AIHA has a Gentefied 100 chemicals for which it will develop EPRG’s most of which are extremely hazardous substances(EHS) with airborne hazards

I.e.: Corine, anhydrous, ammonia, hydrogen sulfide

214
Q

The lower the concentration of a material

A

The more toxic material is

215
Q

Vapor dispersion

A

Vapors from certain materials can be dispersed, or moved using water spray, fans, blowers, or compressed air. Strong consideration must be given to the end result of this action. This person, because large quantities of contaminated, runoff, or reduction of the concentration of a flammable gas or vapor into its flammable range

216
Q

Vapor suppression

A

Do use of foam in firefighting application has become a common practice. Phone can be utilized to suppress vapors of flammable and combustible liquids, as well as other hazardous materials.

You must know what the characteristics of dispelled product our quiz film, forming foam AFFF and alcohol resistant, AFFF are the most common types of farm available for the fire service. AFFF is often used on flammable and combustible spills to suppress the vapors and prevent ignition. Remember, combustible liquids have a relatively high flashpoint, but may have a low ignition temperature.

Remember, if the spill involves a polar solvent, AFFF will be dissolved, rendering the foam ineffective

Fuel such as gasoline may have ethanol and methanol as additives alcohol resistant AFFF, foams are affective on both hydrocarbons and polar solvent fuels, reducing the risk of phone breakdown

217
Q

Basic foam flow rate for hydrocarbon fuels

A

0.1 GPM/1 ft.² or 1 GPM/10 ft.².

218
Q

Basic foam flow rate for polar solvent fuels

A

0.2 GPM/1 ft.² or two GPM/10 ft.²

219
Q

Dispersant

A

dispersants or multipliers that are applied to any oily contaminant to break up or disperse the spill . Typically used or applied after all recovery method have been completed.

220
Q

Dilution

A

Dilution is the process in which quantities of water added to a concentrated spill to render material nonhazardous

221
Q

Neutralization

A

This is the process in which an acid or a base is applied to a spilled base or acid, respectively to produce a neutral material. Bring the pH to 7, 7 is neutral on the pH scale 14 is base 1 is acid

222
Q

Solidification

A

And numerous commercially manufactured products are available for use with spills of acids, bases, fuels, and other materials. This product react chemically to completely solidify a spilled material.

223
Q

GELATION

A

Gelation is a technique in which a commercially manufactured manufactured gel forming agent is applied to a pool of contaminated material to contaminate is transformed into a child state does making recovery easier to complete

224
Q

Sorbent

A

Physical absorption is a process which means material hold liquids through the process of wedding absorption is accomplished by the increased volume of the sorbet system through a process of swelling

225
Q

Five primary sorbents

A

cellulose based-ground corn, cobs, sawdust, Pete Moss

Dirt/earth – soil and dirt

Expanded polymeric-polyethylene or polypropylene materials

Mineral and clay based - ground clay, kitty litter, vermiculite

Sand-

226
Q

Pg70

A
227
Q

Controlling, solid releases

A

Covering is one method

and vacuuming is another method vacuuming. The product will control its dispersion. This process allows the product to be picked up and placed in the containers.

228
Q

Hazard class one

A

Explosives or hazard class one

229
Q

Hazard class 2

A

Gases are hazard class 2

Division, 2.1 flammable gas.

Division, 2.2 non-flammable, non-poisonous compressed, gas.

230
Q

Hazard class 3

A

flammable liquids are hazard class 3

231
Q

Hazard class 4

A

Flammable solids make up hazard class 4

Division, 4.1 flammable solid.

Division, 4.2 spontaneously combustible material.

Division, 4.3 dangerous when wet.

232
Q

Hazard class 5

A

Oxidizers and organic peroxides make up hazard class 5

Division, 5.1 oxidizer.

Division, 5.2 organic peroxide.

233
Q

Class 6

A

Division, 6.1 poisonous material.

Division, 6.2 infectious substance.

234
Q

Class 7

A

Radioactive materials, make up class 7 of the hazard classes

235
Q

Class 8

A

Corrosives make up class eight of the hazard classes

236
Q

Class 9

A

Class name of the hazard class is made up of (miscellaneous materials)

237
Q

Characteristics of ignitability

A

Liquid that has a flashpoint less than 140°F

Not a liquid in capable, under standard temperature and pressure of causing fire, and Burns , so vigorously and persistently that create a hazard

Ignitable compressed, gas

Oxidizer

Organic peroxide

Meets the definition of Class A explosive or class B explosive

238
Q

Characteristics of corrosivity

A

Is aqueous and has a pH less than or equal to or greater than or equal to 12.5

Is a liquid and corrode Steele at a rate greater than 0.25 inch per year

Pg76

239
Q

Characteristics of reactivity

A

Normally unstable and readily undergoes violent change without detonation

Reacts violently with water

Forms, potentially explosive mixture with water

When mixed with water, it generates toxic gases

Cyanide or sulfide, bearing waste, which, when exposed to PH conditions between 2 and 12.5, can generate toxic gases, vapors are fumes

Capable of detonation or explosive reaction

240
Q

Toxicity characteristics

A

Where is that when tested according to APA test methodology contains any of the contaminants listed in the section 261.2(b) Table 1

Summary of contaminants in table 1:

identifies heavy metals

Benzene and chlorobenzene compounds

Cresol (methyl phenal)

Chlorinated hydrocarbons

Listed pesticides

Chlorine compounds

241
Q

Sources of hazard information data

A

Technical information centers-CHEMTREC OR CDC, NRC

TECHNICAL INFORMATION SPECIALIST -take info specials for people who can assist responders by provide specific information about materials in response

Reference manuals -ERG

HAZARDOUS MATERIALS DATABASES- wiser, cameo, & etc

242
Q

ATSDR-agency for toxic substances a disease registry

A

Based in Atlanta, Georgia, part of the department of health and human services protects communities from health effects related to exposure to natural and man-made hazardous substances

243
Q

NTSIP-national toxic substance incidents program

A

The NTSIP, collects and combines information from many resources to protect people from harm, caused by spills and leaks of toxic substances

244
Q

Association of American railroads, hazardous material systems

A

In the event of a hazmat by rail incident, the train conductor provides first responders. A specific training car (CONSIST) information so they can quickly and effectively respond to the emergency.

245
Q

24 hour response: a nationwide net work of emergency response teams

CSX & Norfolk Southern

A

Where was provide a 24 hour emergency hotline number for first responders to call in the event of an emergency. They also have teams a full-time personnel and environmental, industrial hygiene, HazMat, and medical consultants and contractors. His primary focus is hazmat, safety, and emergency response.

246
Q

Mobile apps provide on the ground support

A

Ask rail app was developed by the North American class one railroads

You are G

247
Q

Technical specialists in the private sector

A

Railways – CSX a Norfolk Southern

Motor carriers- mini large, motor carrier companies, have safety person who can offer a technical a logistical assistant in the event of an accident

General industry- industrial hygienist, chemist, engineers, production manager/specialist, and safety/ health managers

248
Q

Commonwealth of Virginia agencies

A

VDEM

Department of environmental quality (DEQ)

VSP

Department of health

VDOT

249
Q

Federal agencies

A

DOC Dash department of commerce

DHHS -department of health and human services

Department of labor

DOT

250
Q

Reference manuals

Pg96

A

ERG

CHRIS -chemical hazards response information system

RSPA - research and special programs administration

NIOSH

FIRE PROTECTION, GUIDE TO HAZARDOUS MATERIALS (FPGHM)

Emergency care for hazardous material exposure

Hawley’s , condensed chemical dictionary

Merck index

251
Q

Hazardous materials, databases

Pg97

A

CAMEO chemicals

Emergency response, decision support system

WebWISER

TOXFAQs

EXTOXNET

Hazardous substances databank, HSDB

Toxline

Registry of toxic affects of chemical substances (RTECS)

Medline

US EPA, integrated risk information system

Chemical hazard response information system (CHRIS)

Cameo

252
Q

Developing the chemical hazard profile for incident analysis

Pg98

A

Potential for energy release, and chemical reactivity

physical state of matter, based on boiling point, or melting point

Fire hazards

Health hazards

Corrosive hazards

State EMT # must be concerned about potential of energy being released, which may travel very rapidly insignificant distances to cause harm. Mechanical, radiation, thermal and chemical energy may be released from a hazard area and be a greater hazard than direct contact with materials that involve the incident.

253
Q

REFER to the chemical hazard profile work sheet

Pg99

A

Identify the material by chemical name

Determine the DOT hazard class/division

Determine the NFPA 704 hazard identification

254
Q

Evaluate energy release hazards

Pg99

A

Explosive

Chemically reactive

Polymerization

Unstable

Radioactive

255
Q

Determine the physical state of material based on ambient temperature, boiling point and melting point

Pg99

A

Gas

Liquid/gas

Liquid

Solid

256
Q

Evaluate the gas hazards

Pg99

A

Fire

Health

Corrosive

Physical behavior

257
Q

Evaluate liquid hazards

Pg 100

A

Fire
health
corrosive,
physical behavior

258
Q

Evaluate the solid hazards

Pg100

A

Fire
health
corrosive,
physical behavior

259
Q

Detection

Page 112

A

Discovering the presence of containment, or dissociated hazard in an area or environment

260
Q

Monitoring

PG112

A

The measurement of an amount of contaminant, or it’s associated hazard at a given time and location

261
Q

Sampling

PG112

A

The act of taking a small part of a material for testing in analysis

262
Q

Why perform detection and monitoring?

A

Identify the material or the nature of hazards

Track or map the movement of the material or it’s hazards

Response tactics: proper detection in monitoring of an incident scene will provide information which responders can use to make informed decisions

PPE selection : monitoring of the incident environment will allow responders to decide on the proper levels of respiratory and body protection required for site operations

263
Q

Decon

Pg112

A

Good monitoring practices can provide information to responders on the type, an extent of decontamination required

264
Q

Cleanup

112

A

Proper monitoring of the incident, say it will dictate the appropriate site cleanup procedures

Jacari detection and monitoring will provide data necessary to answer these questions, and for further decision making

265
Q

Product identification

PG113

A

Physical state; gas, liquid,

Physical properties of the material

Hazards of the material

Toxicity

Flammability

Corrosive (acidic or alkali)

Radioactive

Public protection considerations

Is there a need to evacuate?

Where are the safety zones to be established?

Our response personnel to close ?

266
Q

Atmospheric monitoring

Page 113

A

Evaluating the presence of hazardous gases, or vapors and/or energy in a general area or environment. This helps determine the types and levels of hazard in a work area, such as an outdoor space, building a room, or confined space.

267
Q

When entering an area where hazard is not identified, always monitor for these hazards,

113

A

Radiation

Flammable vapor’s

Oxygen concentration

Toxic gases

268
Q

Known material; detection and monitoring

P114

A

Determine the presence and concentrations of material

Helps to develop the chemical hazard profile and identify the hazards present

269
Q

Detection and monitoring

Unclassified are unknown materials

A

Determines what has are present

May help to Jennifer immaterial by chemical family

May not be able to accurately determine the concentrations of a material

Relies on observing the response of the instrument

270
Q

Decision making

Page 115

A

The purpose is to use a logical and orderly procedure, when using detection in monitoring equipment to prioritize the major hazards of products involved

Level of protection required

Location and boundaries of control zones

Level of Decon required

Evacuation areas

271
Q

Questions that must be answered, include:

116

A

What are the hazards of the material?

What are the physical characteristics? (research)

Is the material radioactive (research and monitoring)

Is the material flammable (research)

Is the material toxic? (monitoring)

Is material corrosive ?(monitoring)

272
Q

High energy release

116

A

Unexpected release of chemical energy: (explosions, chemical reactions, heat, pressure, gas)

or ionizing, radiation (i.e: alpha, beta, gamma , neutron)

273
Q

Flammability

116

A

The production of atmosphere, where vapors can ignite and burn

274
Q

Oxygen deficiency

116

A

The atmosphere lack sufficient oxygen to support life below 19.5%

275
Q

Oxygen enriched

116

A

Atmospheres that provide too much oxygen, and increase the risk of fire or toxicity above 23.5% RKI Eagle2

276
Q

Toxic

116

A

Ability to cause death or serious, debilitating injury

277
Q

Corrosive

116

A

Damaging or destructive affect to living tissue (i.e: skin, lungs, eyes) or certain metals

278
Q

Biological potential

116

A

Micro organisms and/or their byproducts that can cause illness or death

279
Q

Emergency action level

Ionizing radiation

117

A

Greater than 2 mR/hour-consult radiation specialist

um=micro

m=milli

280
Q

Flammability

117

A

The action level for flammability is greater than 25% of the LAL explosive/extreme fire hazard, leave area immediately in ventilate

281
Q

Oxygen and rest environment

117

A

Greater than 23.5% volume in the air increased fire hazard, secure oxidizer in ventilate.

282
Q

Oxygen deficient

117

A

Less than 19.5% volume in air SCBA. required.

283
Q

Exposure limits for selected compounds

A

Check chart below

284
Q

Radiation terminology

Roentgen (R)

117

A

A measure of the ionization of molecules are in a cubic centimeter of air

Most instruments are red in roentgen or roentgens per hour

285
Q

Radiation terminology

Rad-radiation absorbed dose

117

A

The basic unit of absorbed dose of ionizing radiation

286
Q

Radiation terminology

REM(radiation equivalent man)

118

A

A measure of the radiation affect on the body

REM

287
Q

Radiation terminology

118

A

Roentgen, REM, and RAD Are approximately equivalent for gamma radiation.

For our purposes, they mean basically the same thing.(VDEM)

288
Q

Radiation detection

Geiger Mueller tube-

Pg118

A

Gas filled Detector Dash can detect, alpha, beta, and gamma radiation enters the tube and ionizes the gas in the tube with induces an electric current. The current is measured in electrical pulses that are measured on a meter.

289
Q

Radiation detection

Scintillation detector

118

A

This is a crystal sodium iodide that when hit by radiation produces a pulse of light. The light interacts with the photo multiplier which produces an electrical signal. The electrical signal is measured to determine the amount of radiation that hit the crystal.

290
Q

Radiation survey meters

Ludlum model 2240

118

A

2240 measures, alpha, beta, and gamma radiation. The instrument features auto ranging digital readout ranging from
uR/HR, mR/Hr, and R/Hr. It has an internal detection device and an external detection probe.

291
Q

Ludlum, 2241–3

118

A

Ludlum, 2241–3 measures, alpha, beta, and gamma radiation.

The instrument features auto ranging digital readout ranging from
uR/HR, mR/Hr, and R/Hr.

It can be used without the 4 external detection probes

292
Q

Ludlum model, 44–9 pancake style

118

A

Uses Geiger Mueller technology to detect, alpha, beta, and gamma radiation

293
Q

Ludlum model, 44–38

118

A

Uses Geiger Mueller tube with a side window to detect, beta and gamma radiation

294
Q

Ludlum model, 133–8

118

A

Uses Geiger Mueller tube to detect, gamma, radiation only

295
Q

Ludlum model 44–2

118

A

Uses scintillation to detect, low level, gamma radiation

296
Q

Dosimeters

119

A

Dosimeters are used to measure total exposure to individuals over a given period of time

Decimeters should be worn on the outside of PPE. Dosimeters should be checked at 5 to 15 minute intervals.

Readings must be recorded and reported

297
Q

Optically-stimulated luminescent dosimeter (osld)

119

A

Optically stimulated luminescent dosimeter, OSLD provides permanent record of total dose accumulated. The OSLD consists of a chip of a material encased in a plastic holder. The material will trap energy related to gamma and x-rays. It is exposed to. The OSLD’s are sent to a lab where they are read. The computer print out is the legal record and is maintained for 30 years. The Virginia department of emergency manager maintains these record for response team members.

The OSLD is worn on the inside of PPE. This is done to ensure that the TLD received a dose as close as possible to what the body is actually exposed to.

OSLD’s are provided to emergency responders who may respond to incident involving nuclear power plants

298
Q

Flammability

Combustible gas indicators (CGI’s)

A

CGI as can be used to determine the presence of a flammable vapor of hydrocarbon products. They measure the flammable vapors as a percentage of the lower explosive limit. Flashpoint testers are also available for field is. These allow the responder to determine fairly accurately the flammability of an unknown material and the class a flammable or combustible liquid with which they are dealing.

299
Q

Operating principles of CGI meters

119

A

CGI is operate with a detection device of a Wheatstone bridge

This incorporate a gas (atmosphere) sample passed across a heated coil of platinum wire. That is one arm of a Wheatstone bridge system. The combustible gas causes a temperature increase which is measured as a change in the electrical resistance.

300
Q

Catalytic bead sensor

120

A

Similar to Wheatstone bridge technology dispensaries is a bullshit string of metal with a metal bead in the middle. The metal bead is coded with a catalytic material that helps to sample gas burn more efficiently. The center has two beds, as the gas burns off. There is a change in the electrical activity which provides the meter reading.

301
Q

Metal oxide sensor

120

A

The sample gas contacts, a metal oxide element that causes an increase in heat with the changes the electrical resistance. The change in the electrical current causes the meter reading. Dissenter can detect a very low levels of vapor.

Metal oxide sensor

302
Q

Infrared sensor

120

A

This sensor uses a test chamber with a light source and a detective device office at the light source. The sample gas entered into the chamber and is exposed to the light. The gas will absorb part of the infrared light and changes the amount of light that reaches the detection device.

303
Q

Interpretation of data

120

A

The change in resistance is proportional to the quantity of combustibles present, and this is indicated on an analogue scale gauge usually found with a Wheatstone bridge or on a liquid crystal display. LCD used with electrochemical cells.

304
Q

Saturations in the atmosphere

120

A

In an atmosphere that contains more than 100% of the LEL, the instrument will go to the maximum and may return quickly to zero. If the operator is not watching closely, he or she may mess it, and be in an extremely unsafe atmosphere.

305
Q

Correction factors for CGI’s

Pg121

A

CGI’s are designed to give meter readings based on a specific calibration gas used by the instrument manufacture in most cases the calibration gas is methane

Isobutylene is the calibration gas for our PID minirae 3000

306
Q

Correction factors

A

Using the correction, factor can assist in the detection and measurement of gases, other than the one way in which the instrument is calibrated for.

If necessary to monitor an atmosphere containing propane with a meter calibrated for methane, a response curve could be used to determine the actual concentration of propane

307
Q

Flammability/toxicity relationship

(PPM FREQUENTLY USED MEASURE)

121

A

Flammable range is a measurement of the amount of a substance that, when mixed with air, will ignite. This ratio is shown as a percentage of the total volume of air/ignitable vapors mixture.

When a substance is present and sufficient quantity to be measured as an ignitable mixture, it can also be measured in relationship to its total volume in the mixture, represented as part per million PPM . This measurement is the most frequently used method to determine toxicity. Give me a specific substance, and its flammable range, a measurement of its toxicity can be determined.

308
Q

Example of concentration at the LEL

Flammability /toxicity relationship

121

A

The substance is present in a concentration that is at the lower explosive limit. LEL, then it represents 5% of the total volume converted to parts per million. This amount equals 50,000 ppm lesser concentrations can be determined by the percentage or portion of the LAL that is detected by instrumentation.

309
Q

Conversion from percentage of LEL to parts per million (ppm’s)

122

A

1% by volume in air equals 10,000 ppm

310
Q

Limitations of CGI meters

122

A

Most instruments require a minimum of 10% oxygen to operate

Atmospheric levels over 23% oxygen worldwide in the flammable range of vapors and give false readings

Most CGI should not be used in atmosphere containing silicon compounds, sulfur, compounds, and leaded gasoline

Well, not to text, flammable, mists, or dust

311
Q

Maintenance of CGI meters

122

A

Manufactures instructions must be followed

Always do scheduled maintenance

Power source – usually dry cells are rechargeable, NiCad batteries

312
Q

Instruments to be used in flammable environment are constructed to prevent ignition of the atmosphere being tested. There are three methods of construction used

122

A

Explosion proof – ignition source contained in special enclosure, gas is called prior to exit.

Intrinsically safe – insulating material used to prevent arcing

Purged – a steady stream of inert gas passes through the detector to keep flame out.

313
Q

CGI meter calibration

123

A

Calibration of instrument should be conducted routinely following the manufacturers recommendations, and
(preferably before each use)

Use only manufacturer supplied or recommended calibration gas.

Proper recordkeeping and documentation is required

314
Q

CGI meter continued

Oxygen concentration

123 how

A

Oxygen sensors are used to monitor the percent of oxygen in air, generally measure over a range of 0 to 25% oxygen

315
Q

CGI, meter oxygen concentration, operating principle

123

A

Operating principle, uses electrical chemical cell sensor to determine the oxygen concentration. The sensor consists of two electrodes, a basic electrolytic solution, and a semi permeable membrane. The oxygen diffuses through the membrane into the solution, causing a reaction that produces a minute current. This current is then measured relative to the oxygen concentration.

316
Q

Levels of oxygen CGI meter continued

123

A

Atmospheric oxygen is 21%

Less than 19.5% equals oxygen deficient atmosphere OSHA requires the use of SCBA or SAR.

Greater than 23.5% oxygen in Virginia occupational health safety deems this environment to be oxygen, enriched atmosphere, extreme fire, and or explosion hazard

317
Q

If any oxygen rich atmosphere is detected, the responder must determine the cause of the excessive oxygen content (how is this done?)

123

A

Is there a leak?

Is some other oxidizer present, which could cause a false reading

And oxygen in Richmond Fire Mitchell is an extremely dangerous situation. The presence of oxidizing gases can widen the flammable range of combustible vapors.

318
Q

Limitations of oxygen sensors for CGI

124

A

Altitude, dependent high altitude, indicates a low reading, or at low altitude a higher reading.

Oxygen sensors have a limited shelflife usually 1 to 2 years

Oxidizers will give a high reading, examples, ozone and chlorine

High CO, concentrations limit sensor life

May be affected by changes in temperature, humidity, and atmospheric pressure

Maybe adversely affected by high concentrations of carbon monoxide-CO and carbon dioxide-CO2

319
Q

Calibration of CGI meters

124

A

Calibration of instrument should be conducted routinely following the manufacturers recommendations, preferably before a to use

320
Q

Toxic vapors (detection, and monitoring)

124

A

Several types of instruments can be used to measure toxic exposures. Some of these instruments are designed to measure a specific chemical, such as hydrogen sulfide- H2S, carbon monoxide-CO, chlorine, and some may measure more than one.

321
Q

Toxic gas sensors

124

A

Are used to detect and measure the presence of gases, such as hydrogen sulfide, H2, S, and carbon monoxide CO and chlorine and a broad range of other chemicals

322
Q

Operating principle of CGI meter

124

A

The majority of instruments use an electric chemical cell that contains an electrolyte solution. As the test gas passes through the semi-permeable membrane into the electrolyte solution, a change in the amount of electrical resistance is noted and read, as ppm or percent of volume on the gauge or display

323
Q

Examples of toxic gases

124

A

Carbon monoxide: any atmosphere with a concentration of 50 ppm or more of CO OSHA requires SCBA or SAR.

324
Q

SAR

A

Supplied air respirator this is an option similar to an SCBA

325
Q

Hydrogen sulfide

Low levels

125

A

Sewer Gas

At 1 ppm, you can smell the odor

At 20 ppm you have reached the OSHA pel ceiling

At 100-150 ppm there is no odor. Do you have a irritation, visual, distortion, headache, nausea, dizziness, irritation of ears, nose, or throat.

326
Q

Hydrogen, sulfide,

high levels

125

A

300 ppm- loss of consciousness, pulmonary edema

500 to 1000 ppm -paralyzed sense of smell, difficulty breathing

1000 ppm or more -stops breathing mechanism, death

327
Q

True or false

High levels of CO/H2 S can become a fire or explosion hazard

125

A

True

328
Q

Calibration,

CGI meter

125

A

I calibration of instruments should be conducted routinely following the manufacturers recommendations, and preferably before each use

329
Q

Photoionization detectors (PID)

125

A

PIDs are used to detect either qualitative or quantitative presence of organic and inorganic compounds

330
Q

PIDs are made up of

125

A

The PID consists of an ultraviolet lamp and an ion chamber. The PID measures the concentration of gas is present in a sample using photo ionization. Photo ionization occurs when the molecule absorbs a photon/light energy of sufficient energy to cause an electron to leave its orbital and create a positive ion

331
Q

Ionization potential IP

125

A

Ionization potential of a molecule is that energy in electron volts(eV) required to free and electron from the molecule

332
Q

Electron volt, eV

125

A

Unit of measure of the ionization potential

333
Q

Ionization potential IP

125

A

The energy required to remove the outer most electron from the molecule (vapor) being tested.

It is specific for individual compounds

334
Q

PID limitations

125

A

Ultraviolet light is affected by radio waves

Dirt or dust on lamp windows affect the reading

Condensation on lamp windows affects the reading as well

335
Q

Flame ionization detector

126

A

The FID is an ionization detector that uses a hydrogen flame to ionized the sample gas. The hydrogen flame can ionized in the organic material with an IP of (15.4 or less.) The ion current is converted to a meter reading. If ideas used to detect, volatile, hydrocarbons, and many carbon containing compounds.

336
Q

ColorMetric tubes

126

A

Detector tubes, which allow responded to evaluate potential hazards, quickly, operate by drawing an air sample through a tube. The sample gas reacts with the reagent inside the tube, cause the color change, indicating the presence and concentration of the material in the air.

337
Q

FID lamp

125

A

15.4 or less

338
Q

Purpose of colormetric tubes

126

A

Use for the detection of specific vapors, and also for aiding in the identification of unknowns

Qualitative -the positive or negative of product

Quantitative - measurable to determine the amount and proportions

339
Q

Operating principle of colorMetric tubes

126

A

Indicator tube: sealed glass tube, which contains chemical reactions. Specific tube is used for sampling vapors only of a specific chemical or chemical family. It’s too bad the specific set of instructions. The end or broken off the tube when it is used.

A pump, bellows, piston, or automatic, is used to draw/grab a sample of the vapor into the tube.
The number of strokes/pumps that is required to pull a constant amount of air through the tube at a predetermined rate is found in the instructions, or on the tube itself.

The sample of air introduced into the tube will react with three agent and a stain will result. The length of the stain is a measure of the chemical vapor concentration, and there’s usually read as parts per million of contaminant. Most tubes are marked with a graduated, scale or a comparison tube will be used for determining the relative quantity of a vapor.

(~ different types of tubes include directed reading, comparison, ampoule, connecting, the fusion, and special)

340
Q

ColorMetric tubes and decision matrix

127

A

Those two manufacturers provide a decision matrix that can be used to identify unknown materials. Most systems use a non-quantitative tube, (poly test, poly tech) to determine whether or not a material is organic or non-organic. Hey series of tubes, which are sensitive to specific chemical families, and then used to narrow the field of the search.

Other message to detection will be required to fully determine the identity of an unknown. Equipment like the Cgi and pH paper will be needed to assess most products.

341
Q

Interpretation of data

ColorMetric tubes

127

A

The tubes are used to confirm the presence of known materials or identifier size characterize, unknown materials.

The length of staying in The kslay amount of vapor concentration. The vapor concentration will usually be expressed in ppm. The number of ppm is ascertained by comparing the length of stay in to the scale/directed reading on the tube or by use of a color comparison tube. Numerals on the scale may have to be multiplied by a conversion factor to determine the quantity.

Most tubes are chemical specific. Some tubes across sensitive. The other chemicals in accuracy of the reading may be affected.

Once the level of concentration is determined, one must be able to compare findings to ID, LH, TLV, P E,L, etc. in order to reevaluate work zones, Decon, etc.

342
Q

Limitations of ColorMetric tubes

127

A

They have a shelf life of 1 to 3 years

Moisture and temperature can affect readings. Hot weather increases reaction: cold weather slows reaction.

difficulty with interpretation, for example, does slight staining indicate positive for staining of 1/3 of the tube with one stroke?

Different brands of tubes, and the tubes or pumps are not interchangeable

343
Q

Meters & corrosivity

128

A

Corrosivity is measured by determining the pH of a material. This can be done by using pH paper or page meters. These paper changes color.

Change in color on pH paper indicating the pH level, by comparing The paper to the color chart provided you can now tell whether material is an acid or a base the pH is indicated

pH meters is a probe that is inserted into the material: the pH is indicated on the meters display pH meters provide a more accurate reading than pH paper

344
Q

Operating principles: pH paper

Color method involves

128

A

Litmus paper which turns blue when there is an alkaline president or turns red when there is an acid presen litmus paper which turns blue when there is an alkaline president or turns red when there is an acid present

pH paper is treated paper which indicates whether the solution is acidic or alkaline body association of color to a numerical value.

345
Q

Operating principles pH meters

128

A

pH meters utilize the following:

Measuring electrode: a special glass ball that is sensitive and selective to H+ions

Reference electrode: complete circuit between the measuring electric, through the meter, and into the sample (solution)

Meter: electrically displays the voltage input from the electrodes

346
Q

Interpretation of data

pH paper

128

A

Use of a color or scale with ascertain whether a solution is acidic, alkaline, or neutral

Wet paper indication

347
Q

Limitations of pH paper

128

A

Perception of color and or color blindness

Died Solutions may master color change of the paper

Some solutions may bleach out the paper

The color can be obscured by Greece, slides, or highly turbid waters (lots of sediment in the water/solution)

348
Q

Limitations of pH meter
128/129

A

Meter drift: hard to stabilize with low or high ionic strength Solutions

Power source battery or AC

Must be calibrated before use and buffer solutions must be used to obtain correct readings

Temperature dependent

349
Q

Water finding test paper:

operating principle

129

A

Do use of white witness paper that turns lavender in the presence of water. The paper changes colors in the presence of extremely small concentrations of water, so it may indicate the presence of water and other materials are present

350
Q

Water finding test paper

Interpretation of data

129

A

Color change on paper indicates water. This may indicate that the material is all water or have trace amounts of water in the solution or mixture

351
Q

limitations of water finding paper

129

A

Dyed Solutions may mask color change

Some solutions may bleach out paper

Sensitivity to humidity

Greece, slides, or highly turbid waters kind of scare the color

Does not detect other hazards present

352
Q

Other instruments and specialized kits

129

A

Several types of instruments and kits can be used to detect or measure the presence of toxic materials. These instruments or test kits are designed to measure specific chemicals or categories of chemical hazards

353
Q

Pesticide test kits

129

A

Operating principles: test kits are good for the detection of organophosphate and carbonate pesticides which represent 85% of products currently used

Always follow manufacturers instructions

354
Q

Interpretation of data: Other instruments and specialized kits

129

A

Ticket contains cholinesterase what’s the changes color in reaction to the pesticide. If a ticket changes to Blue, no pesticide is present; if a ticket changes white, contamination is present

As a failsafe, if the test fails, I think it remains white as a safety measure, as it assumes there may be contamination until proven otherwise

355
Q

Limitations of specialized kits

130

A

Range of detection: 0.1 to10 ppm

Limited accuracy, lab follow up necessary

Limited shelflife

356
Q

PCB test kits

Operating principles

130

A

Chemical reaction causes a color change in a reagent.

Follow manufactures instructions

357
Q

Hey CB test kits

interpretation of data

130

A

Color changing solution indicates the presence of PCBs

available in different ranges
50\100\500 ppm

358
Q

PCB test kits

EPA regulations

130

A

Less than 50 ppm not contaminated

50–499 ppm PCB contaminated

Greater than 500 ppm PCB oil

359
Q

PCB test kits

For disposal

130

A

The waste oil must be burned and then incinerator at 1200°C for two seconds

regulated by 49 CFR part 761.60

360
Q

PCB test kit limitations

130

A

Limited shelf life

Must come in contact with product

Limited accuracy

Field testing only - lab follow up as necessary

361
Q

Chlorinated solvent test kits

Clore d tect kits

Operating principles

130

A

Chemical reaction causes a color change in a reagent

362
Q

Chlorinated solvent clor detector kits

Interpretation of data

130

A

Color changing solution.

Range of detection 1000 ppm/4000 ppm

EPA regulations 40 CFR 261: greater than 1000 ppm of chlorine and oil is considered hazardous waste

363
Q

Limitations

of chlorinated solvent chlor detector kits

130

A

Limited shelf life

Must come in contact with the product

Limited accuracy

Field testing only lab follow up is necessary

364
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

365
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

366
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

367
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

368
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

369
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

370
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

371
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab was placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

372
Q

Protein test kits

131

A

These test kids measured the presents for absence of a protein in a sample. Samples are collected using swab treated with special chemical. Swab is placed in a tube with a chemical reagent and a color change indicates the presence of a pro team. A positive test for protein indicates the possibility of a biological agent

373
Q

M8/M9 paper or tape

131

A

Used to detect the presence of nerve or blister agents and liquid or aerosol form. The paper or tape must contact the Sampl liquid and a positive reading as indicated by color change. There may be false positives to common household products

374
Q

M8 paper/M9 tape

Maintenance of detection and monitoring equipment

131

A

Read and follow manufacturers recommendations

Power supply keep batteries charge to operating range or replace as required according to designed service life

Keep equipment, clean and purge with fresh air to remove any contaminants from sensing Chambers

Turn components of limited service live or maybe contaminated by certain chemicals or conditions. Replace components as recommended by manufacture. ColorMetric tubes and the Texans cells have a definitive service life.

375
Q

HMT PPE

TRACEM

136

A

TRACEM will help hazardous materials technicians, getting idea of the various types of hazards.

TRACEM -thermal, radiation, asphyxiation, chemical, ideological, and mechanical

376
Q

Methods of protection, for the HMT

136

A

Three basic methods of protection from hazardous materials are time distance and shielding

Of the three time and distance require no special equipment

377
Q

Time distance and shielding

137

A

Time- minimize time of exposure

Distance maximize the distance from the hazard

Shielding-this requires the use of special equipment, and then a fine and selecting special chemical protective equipment as part of the planning process

378
Q

PPE selection factors

3 major factors

137

A

The person- physical condition the HMT must be in good physical condition, capable of working in CPE, extreme temperatures and humidity conditions, and being able to perform strenuous work in these conditions. Pre-entry medical evaluation with vitals within acceptable limits. Need to be done prior to entering CPE and hazardous material situation’s.

379
Q

Baseline Medical surveillance

29-CFR 1910.120

137

A

The medical exam should be done every 12 months unless attending physician believes a longer interval is appropriate(never greater than biannually)

380
Q

Medical surveillance 24 hours prior to event

137

A

The technician Shawna had consumed any alcohol or drugs, prescription or illegal within the past 24 hour. The recent use of alcohol or drugs should be a disqualification factor for any entry personnel. They TMT should be adequately hydrated to prevent heat related illness.

381
Q

Personal protection, for the HMT

138

A

Protecting the HMT includes the use of protective barrier or equipment to prevent the HMT from directly contacting the hazard. Shielding or protective equipment is not universal, and it does not eliminate the hazard. It is used to prevent the HMT from being exposed to the hazard and contaminated or harmed.

382
Q

Respiratory protection, PPE

OSHA MINIMUM LEVEL OF PROTECTION for emergency response

139

A

The minimum level of protection OSHA requires for emergency response is positive pressure, self-contained, breathing apparatus, whenever the atmosphere is known or suspected to be oxygen deficient 19.5% or less or IDLH positive pressure SCBA must be used.

383
Q

Types of respiratory protection

3 types of respiratory PPE

139

A

APR-air purifying respirator

SAR -supplied air respirator

SCBA -self-contained breathing apparatus

384
Q

Quantitative testing a breathing apparatus

140

A

If the where can smell the substance, this indicates a leak

If the ideal age is toxic or oxygen deficient, you must wear an SCBA, or SAR

385
Q

Respiratory PPE non-IDLH environment

140

A

APR is appropriate whenever it is not deemed to be an IDLH

Gas or vapor particulate -APR WITH CHEMICAL FILTER OR CHEMICAL CARTRIDGE

386
Q

Self-contained, breathing apparatus SCBA

141

A

The principal operation is open circuit, design, stores, air in the cylinder, which passes through a series of regulators to a usable pressure. All personnel should be familiar with their operation and components.

387
Q

Advantages of SCBA

141

A

Provides the highest available level of protection, protects against most airborne contaminants, high mobility

388
Q

Limitations of SCBA

141

A

S BBJ may be exposed to contaminate atmosphere other than when used with level a CPE, Limited duration, & no back up system

389
Q

Airline/supplied air respirator

141

A

And this type of operation, air supply to the user from a large volume cylinder or compressor, was supply hose connected to a suit or mask

Components include for facepiece

Regulator at cylinder

Cylinder of compressed air to (2216/4500 psi )

High pressure hose

Escape bottle for a minimum of 5 minutes

390
Q

Advantages of airline/supplied air respirator

141

A

Longer duration, lighter weight than SCBA

391
Q

Limitations of SAR -supplied air respirator

A

SAR has limited mobility with airline

Length of her is limited to 300 feet

Chemical resistance of airline

Requires the use of an escape pack

Must have supervision at supply area

Responder can become entangled

392
Q

APR. Air purifying respirator

142

A

APR airfare for a respirator these use a filter or sorbet to remove airborne contaminants, are designed for use only in atmospheres that contain enough oxygen to sustain life

They should only be used when the hazard and concentration of the hazardous material is known that level must be within limitations of the filter being used

The life of filtering cartridges depend on the concentrations present, the type of filter, material being used, and the breathing volume of the user

393
Q

True or false

APR should not be used by initial responders to the emergency involving hazardous materials

142

A

True as you do not know what the hazard is

394
Q

Different types of APR’s

142

A

Full face

Half face

Powered air purifying respirator, PAPR

395
Q

Components of an APR

142

A

face-piece full or half

Filter cartridge Dash particular, gas/vapor, combination

396
Q

Advantages of APR’s

142

A

Greater mobility

Lightweight

No sudden failures

Allows for longer work periods

397
Q

Protection from thermal harm

143

A

Structural firefighting, PPE provides the best protection from thermal harm

398
Q

Flask, overprotective suits, and or proximity suits

143

A

This is provides short duration in close proximity protection, the radiant heat temperatures as high as 2000°F and may withstand some exposure to water and steam

399
Q

True or false proximity suit or not design for fire entry

143

A

True

they do not designed for fire entry

400
Q

Low temperature gear

144

A

The temperature gear, boots, gloves, etc. provide some degree of protection of the encapsulated chemical protective clothing from contact with the low temperature, gases and liquids. They are worn outside of the encapsulated, chemical, protective clothing. They are used only when the risk requires them

401
Q

Fire entry suit

143/144

A

These suits are built to withstand up to 2000°F, they are composed of a coat pants, boots, glove and hood. It is made up of many layers of flame retardant materials, the outer layers usually aluminized.

402
Q

True or false

no single type of CPC is suitable for all types of hazardous incidents

144

A

True- no one type of CPC is suitable for all hazardous incidents. It is very dependent upon the chemical and or hazardous material.

403
Q

Level A Suit

145

A

Chemically protected from gas vapor liquid

SCBA used for respiratory protection

NFPA 1991 standard on vapor protective ensembles for hazardous materials emergencies

404
Q

Level B suit

145

A

Level B

liquid splash chemical protection

SCBA for respiratory protection

NFPA 1992 standard on liquid, splash, protective, ensemble, and clothing for hazardous material emergencies

405
Q

Level C suit

145

A

Chemical protection, liquid splash

Respiratory protection, APR

NFPA 1982 standard on liquids, place protective ensemble, and clothing for hazardous material emergencies

406
Q

Level D suit

145

A

Chemical protection – limited

Respiratory protection, none

No NFPA standard applies to

407
Q

NFPA, 1994

146

A

Standard unprotected ensembles for first responders to CBRN terrorism incidents

Purpose: of this standard shall be test that was a minimum levels of protection for emergency, first responders in person outside the incident involving CBRN agents

408
Q

CBRN terrorism event, protective ensembles, and ensemble

146

A

Elements that multiple elements categorize this class to class three or class for CBRN protective ensembles and ensemble elements designed to provide minimum full body protection against exposure to chemical biological terrorism agents occurring during chemical biological terrorism emergencies

409
Q

Class 2 CBRN protective ensemble

146

A

Class 2 zone to protect in emergency, first responder personnel at Terry Simmons events involving vapor or liquid chemical hazards where the concentrations are at or above IDLH and requiring the use of self-contained breathing apparatus, SCBA

410
Q

Class 3 CBRN protective ensemble

146

A

Class three is designed to protect emergency, first responder personnel at terrorism incidents involving low levels of vapor or liquid chemical hazard where concentrations are below idea lights levels permitting to use of CBRN air purifying, respirators, APR or CBRN PAPR powered air, purifying respirators

411
Q

Class 4 CBRN

146

A

Class four is designed to protect emergency, first responder personnel at terrorism incidents involving biological hazards or radiological particulate hazards, or the concentrations are below ideal. Its levels permitting the use of APR respirators, or PAPR respirators.

412
Q

Level A vapor protection

147

A

Level A protection should be used when

The hazardous material has been identified, requires the highest level of protection for skin, eyes, and respiratory system, based on either the measured or potential for high concentration of atmospheric vapors, gases, or particulates, or the site operations and work function of a high potential for splash, immersion, or exposure to unexpected vapors, gases, or particulates of materials that are harmful to scan or capable of being absorbed through intact skin

Substances, with high degree, or hazard to skin, are known, or suspected to be present as skin contact as possible; or operations must be conducted, and can find or poorly ventilated areas, and the absence of conditions requiring level eight has not yet been determined

413
Q

Level A components

Plus optional components
147

A

Totally encapsulated chemical protection suit

Positive pressure SCBA

Gloves, outer, chemical resistant

Gloves in there, chemical resistant

Boots, chemical resistant steel toe, and shank

Two way radio

Optional Equipment:

internal cooling vest

Coverall cotton/nomex , etc.

Long, cotton underwear

Hardhat

414
Q

Flash- covers

148

A

There’s no one CPC to protect entry personnel from both chemical and thermal hazards. Plus covers over TECP suits may not be the ensemble of choice when both thermal and chemical protection is needed.

415
Q

Cryogenic covers

148

A

Protective clothing design for use when working near cryogenics. They will NOT protect the wearer from Direct cryogenic exposure. It’s limited purpose is to protect the wearer with handling equipment, which has been exposed to cryogenics.

416
Q

Design features of totally encapsulated chemical protective suit

(TECP)

148

A

Bat wing sleeves

Reinforce face shield

Size variety

Seemed may be reinforced in one or more ways, stretching, strapping, cement, welding sealant

Glove/sleeve interface club attached to level a suits must be attached to the garment in a gas type manner (i.e. concentric rings, ring/clamp, connect rings)

Boot size pants in your face- boots in the same manner as a glove also over boots can be worn outside of the material but suit must be gas tight

Exhaust valve, these are used to prevent over-pressurizing encapsulated suits
(there are two types of valve, flapper, and string/spring valves)

Face shields they may be removal or permanently attached to suits. Sunvisor susceptible to crazy surface cracking up on exposure to certain chemicals.

417
Q

Level B protection with SCBA

149

A

Level B protection should be used when:

The type of atmospheric concentration of substances has been identified and require a higher level of respiratory protection, but less skin protection

This involves atmospheres, with ideal light concentrations of specific substances that do not represent a severe skin hazard, or that do not meet the criteria for use of air purifying respirators (APR)

The atmosphere contains less than 19.5% oxygen.

The presence of an completely identified vapors or gases, is indicated by directed reading, organic vapor, detection instrument, but vapors and gases are no not to contain high levels of chemical harmful to skin or capable of being absorbed through intact skin

The presence of liquids or particulates is indicated, but they are known not to contain high levels of chemical harmful to skin or capable of being absorbed through intact skin

418
Q

Components of level B protection

149

A

Chemical protective, splash suit

Positive pressure SCBA

Gloves, outer chemical resistant

Glove and or chemical resistant

Boots, chemical resistant steel toe, and shank

Two way radio

Hardhat

419
Q

Level B protection characteristics

149

A

Level be, for Taxi cannot keep out vapors or gases that contain high concentrations of chemicals they may harm to scan, or that may be absorbed through the skin. Level B should not be used when the work being performed is likely to generate high concentrations of gases or splashes of materials that will affect exposed skin.

420
Q

Permeation

152

A

Process by which a chemical move through the protective clothing material on a molecular level

Breakthrough time, and or permeation rate

421
Q

What is the breakthrough time of chlorine on a PVC suit?

152

A

Corine has 120 minute break their time on a PVC suit

422
Q

Factors that influence permeation

152

A

Temperature

Thickness of protective material

Concentration of chemical

Multi component in liquids

423
Q

Penetration

152

A

The flow of a chemical through closures, seems and pinholes or other imperfections, and a protective clothing material on a non-molecular level, follows, natural path or man-made holes does NOT eat through the material

424
Q

Potential points of penetration

153

A

Seems
Exhalation valve
hand, and foot joints
Face shield, assemblies

425
Q

Degradation

153

A

Degradation is the harmful change in one or more physical properties of a protective clothing material. Did you contact with chemical. The Gracian is the actual destruction of material and there’s also the most obvious form of chemical contamination.

426
Q

Signs of degradation include

153

A

Stiffness

Bubbling

Tackiness (soft and sticky)

Cracking/crazing and face shield, or other hard plastic

427
Q

Most common way to determine chemical resistance for CPPE

153

A

Compatibility chart are used in the selection of chemical protective clothing. This is sometimes a complicated process. There are several factors that must be taken into account, including chemical resistant. The level of protection required compatibility charts are the most common way to determine the chemical resistance.

428
Q

Information on chemical compatibility chart

154

A

Chemicals tested

Test methods

Terminology

Special notation

429
Q

Limitations of compatibility chart

154

A

Limited amount of products

Different concentrations of material from concentration involved at the answer that question

Test results derive from test done on pure compound only; mixtures not included

430
Q

Sources of compatibility data

154

A

Manufactures compatibility charts

Safety data sheets

Industrial hygienists

Independent sources

ACGIH guidelines (American Conference of Governmental Industrial Hygienists)

Computer databases

431
Q

Responsibilities of the hazmat, safety officer

155

A

Review and confirm that PPE selected as appropriate for the hazards identified

I’m sure that all PPE being used it inspected and is in proper operational condition

Inspector entertainment back of team members are properly wearing and using the selected PPE

Confirmed that decontamination to set up prior to entry

Monitor entry operations and status of personnel

432
Q

True or false

The city officer has the authority to stop, alter, or suspend any, and all unsafe operations

155

A

True

433
Q

True or False

Heat stress is the most common hazards encountered by emergency responders

156

A

True

Heat stress is one of the leading cause of emergency responder injury

434
Q

VDEM HAZMAT HAND SIGNALS

160

A

Waiving right arm=distress/help

Hands on head=OK

Fist on heart up to chin=low on air

Cut throat= out of air

Pointing with right fist = Danger

435
Q

How much air do you have inside Level A

161

A

You have approximately 5 minutes of air in a level A suit

436
Q

Emergencies while working in CPPE

161

A

Loss of air supply

Loss of CPPE integrity or any breach or failure in chemical shielding

Loss of communications between entry in back up team members or with HazMat leaders

Injured or incapacitated entry team, member, buddy down

437
Q

Tactical safety briefing name to six steps

161

A

Hazard analysis

Signs and symptoms of exposure

Tactical objectives, including equipment necessary

Level in types of CPPE

Communications plan

Decontamination plan

438
Q

What is Fast tracking

162

A

Fast tracking or quick dress is done when there is a viable victim and a hazard area and life-saving rescue can be made

You can eliminate the pre entry medical

439
Q

Seven methods of physical decon

173

A

Brush,
dilution,
scrubbing/scraping
sorption
absorption
adsorption
vacuuming

440
Q

Other Decon methods,

not for use on personal

174

A

Steam jets
pressurized air
sandblasting

441
Q

Chemical methods of Decon (5)

174

A

Neutralization
dissolving
solidification
sterilization
surfactant

442
Q

Emergency decon

175

A

Flush>strip>Flush

443
Q

Mass decon

177

A

Strip>Flush>Cover

444
Q

Minimum requirements for medical care in the decontamination area

181

A

At minimum you need a BLS unit to standby in close proximity

445
Q

(Solution A) for Decon

185

A

Inorganic acids in metal processing waste

446
Q

SOLUTION B for Decon

185

A

Heavy metals, such as mercury, lead,
Cadium

Pesticides, chlorinated, phenols, dioxins, and PCPs

Cyanide, ammonia, and other non-acidic and organics

447
Q

SOLUTION C OR A for Decon

185

A

Solvent in organic compounds

PBBs and PCBs

448
Q

SOLUTION C Decon

185

A

Oily, greasy, unspecified waste,

(no pesticides)

449
Q

SOLUTION D Decon

185

A

An organic bases, alkali, and caustic waste

450
Q

Liquid non-bulk containers

191

A

<119 gallons

451
Q

Gas non bulk

191

A

<1000lbs of water capacity

452
Q

Bulk Liquid

191

A

> 119 Gallons

453
Q

Bulk Gas

191

A

> 1,000 lbs of water capacity

454
Q

Bulk Solid

191

A

> 882 lbs

455
Q

Intermediate bulk (IBC)

(A subset of bulk)

191

A

119-793 gallons

456
Q

Carboys

193

A

Used for liquids, our glass or plastic bottles that maybe encased in outer packaging, such as expanded polystyrene box, a wooden crate, or a plywood drum Cowboys rains in capacity to over 20 gallons

Ex: sulfuric, nitric, and hydrochloric acid, ammonium, hydroxide, and water

457
Q

Multi cell packaging

193

A

Form fitting, expanded polystyrene box and casing one or more bottles polystyrene box may be shipped with two parts blended together,

when transporting certain Department of Transportation, DOT regulated chemicals, the maximum bottle capacity is 4 Liters just over 1 gallon

Ex: multi sell, packaging, contains special chemicals for electronics, like sulfuric and hydrochloric acid and various solvents

458
Q

Pressurized 1 Ton Containers

(Multi unit tank car DOT 106A & 110 AW)

200

A

(Liquid capacity is 180-320 gallons)

Tank test pressures range from 500-1000psi

Ex: anhydrous ammonia, butadiene, chlorine, phosgene, refrigerant or dispersant gases, or sulfur dioxide.

459
Q

Specialized kits

205

A

Specialized kids are available for use in certain pressurize containers. Specific directions must be followed when using these kits

460
Q

Specialized kit, CHLORINE A KIT

205

A

100lb & 150lb CHLORINE CYLINDERS

461
Q

Specialized kits: CHLORINE B KIT

205

A

Chlorine B Kit 1 Ton chlorine containers

462
Q

Dome roof tanks

208

A

Operating pressure of 2.5 to 15 psi

Textor, flammable and combustible liquids, fertilizers, chemical solvents

463
Q

Underground storage tanks

208

A

Horizontal Takeshita, the steel, fiberglass or steel with fiberglass coating. Any tank with greater than 10% surface area underground is considered an underground storage tank does a Bull khimes Dance Phil points and potential occupancy location ie: service stations, fleet, maintenance, etc.

These things primarily store petroleum products

464
Q

High pressure horizontal tanks

209

A

Generally single sell, non-insulated tech round it ends indicate high pressure size varies in occupancy from 1,000 -3,000+ gallons usually hold

LP gas, anhydrous ammonia, high vapor pressure, flammable liquids

465
Q

High pressure spherical tanks

209

A

Single tank, non-insulated tank, painted white or highly reflective color

Capacities to 600,000 gallons these tanks may have a water spray system for fire protection typical commodity LP gases

466
Q

Cryogenic liquid storage tank

210

A

Well, insulated Thermo bottle designed primarily found and heavy industrial facilities, hospitals, and gas processing facilities

Capacities 400,000+ gallons

Typical commodities, liquid, oxygen, liquid, nitrogen, liquid carbon dioxide

Problems. These are subject to thermal, chemical, and mechanical stress, BLEVE, runaway cracking,

Tactical operations require the use of a technical specialist, fire control requires termination of fuel flow special considerations are protect from thermal stress, transfer products, plug, and patch

467
Q

Distribution systems

210

A

Includes pipes, valves, pipe, lines, and control devices. They carry a variety of materials, including gases, flammable, like with an corrosive. Lines generally have signs which include product name, owner, and emergency telephone number.

Often releases in these lead to large scale incidence is a high degree of exposure to other containers. They release under pressure that may result in widespread contamination.

468
Q

Intermodal tank containers

211

A

Cylinder and close at the end by heads; capacity ordinarily does not exceed 6,340 gallons

90% of greater of these tanks or build a stainless steel: the rest are stainless steel

There are aluminum versions, but they cannot be used on water transport mode

Most common size 20 feet long or eight 8 1/2 feet wide and also 8 feet to 9 1/2 feet tall very few containers longer than 20 feet are used in US

469
Q

Take container markings

212

A

Tank containers are registered with the international container bureau in France

They must be marked with initials, reporting marks, and a tank number. The initials indicate ownership of the tank and the tank number identifies the specific tank.

10 containers must meet the design, construction and safety standards set forth by the US Department of transportation

Tanks meeting the requirements of section 600 specifications for acceptability of tank, containers and association of American railroad specifications for tank. Cars will display. The AAR 600 marking on both sides

The tank also display a country code, size/type code, tank and valve test dates and if caring, hazardous materials must be placarded

470
Q

General classes of tank containers

213

A

Nonpressure

Pressure

Specialized, (including cryogenic, a Liquid Tint containers in to modules )

471
Q

Nonpressure/low pressure tanks

213

A

Nonpressure tin containers called and I’m a little portable tanks or IM portable tanks, make up 90% of the total tank containers. Max allowed working pressure 100 psi Tanks are tested to 1.5 times the max working pressure

472
Q

IMO type 1 portable tanks

213

A

These things are book to stay in the max working pressure of 25.42 100 psi they may transport both nonhazardous and hazardous materials including toxic cursive inflammable with flashpoints below 32°F.

Typical issues, thermal mechanical stress damage may include open or , damaged valves, punches, it, splits, or tears

Solutions , plug, pads, transfer, protect from thermal stress

473
Q

IMO type 2 portable tanks

213

A

These tanks are built the withstand maximum working pressure is at 14.5 to 25.4 psi

Used to transport commodity, such as whiskey, alcohols, and some corrosive, pesticides, insecticide resin, and industrial solvents

Also flammables with flashpoints between 32°F and 140°F

Problems, thermal, mechanical stress damage me include valves, puncture, splits, or tears

Solutions plug patch transfer, protect from thermal stress

474
Q

IMO type 5 (PRESSURE TANK)

214

A

A.k.a. DOT specification 51 portable tanks

These are less common in transport

They are designed to handle internal pressures ranging from 100 to 500 psi and generally transfer. A gas is liquefied under pressure like LPG and anhydrous ammonia.

Problems Dash subject to thermal, mechanical stress, problems may include damage valves, open or damage, safety, relief, devices, runaway, cracking, punctures & splits or tears

Solution transfer, plug, Pat, venting, protect from thermal stress

475
Q

Special containers

IMO type 7

214

A

IMO type 7 are designed to carry refrigerated liquid gases, like argon, oxygen and helium. These are built to DOT SPEC 51 standard.

These consist of a tank within a tank design with insulation between the inner and outer tanks. The space between the inner and outer taxes normally maintained under vacuum.

Subject to thermal and mechanical stress, damage to insulation, damaged and or open valve or safety relief devices

Solutions Dash pet insulation later, transfer, venting

476
Q

Tube modules

214

A

Two modules are not actually portable tanks, transport bulk gases this rigid bulk packaging, consists of several horizontal seamless steel cylinders

Usually rains in size from 9 inches to 48 inches in diameter permanently mounted inside of a frame box on one end enclosing valving service pressures range up to 2400 psi

Typical commodities include liquefied gases, such as helium, nitrogen, and oxygen

477
Q

Intermodal, freight containers

215

A

Most freight containers are 8‘ x 8‘ x 20‘, or 8 x 8 x 40 and may be distinguished from semi trailer boxes by their corner castings which allow them to be secured in stacks and lifted by cargo handling equipment

They may contain a variety of hazardous materials that are shipped and other type of packages inside. The container for containers themselves may suffer, puncture, splits, and tears and closures opening up

Solutions . Transfer of material specific interior containers may be plug patched, and or overpacked are transferred.

478
Q

Highway cargo tanks

216

A

DOT cargo tanks are divided into three categories, non-pressure, pressure, and miscellaneous. All the other designs may exist.

479
Q

Non-pressure over the road cargo tanks

216-222

A

MC306/DOT406 (9,000 gallon capacity): 3-7psi @ 100°F. 8 separate compartments MWP 4psi; minimum 2.65psi
(flammables, combustibles, mild corrosives, & poison 6.1)
——————————————————-
MC 307/DOT407 (7,000 gallon capacity) horseshoe shaped MWP 40psi /minimum 25psi
pressure relief valve operates at 25psi or more or at 250°F bottom loaded and bottom, offloaded, air pressure for top or bottom offload single compartment can be as many as five compartments
—————————————————-
MC 312 /DOT 412 (5,500gal capacity)
Stainless steel or carbon steel normally non-insulated bottom loaded and offloaded air pressure used for offload

-normally single compartment with optional baffle
-max working pressure of 50 psi minimum pressure of 35 psi
Bottom loaded and bottom offloaded; air pressure used for off-load

480
Q

Pressure cargo tank

MC331

223-224

A

How many spherical shape and I don’t like shape steel

non-insulated single compartment

maximum working pressure of 500 psi, minimum pressure of 100 psi

Capacity is up to 11,500 gallons

Typical commodities, anhydrous ammonia, chlorine and liquefied petroleum Gas, propane, and butane

smallest example of pressure cargo tank is 500 to 1000 gallon nursed tank of anhydrous ammonia found in agricultural areas.

Upper 2/3 of tank, painted white and less aluminum

481
Q

Pressure tank

Misc cargo tanks

224

A

Cryogenic liquid cargo tanks, transport refrigerated liquid gases, this type of cargo tank in a tank with an a tank insulation between the inner and outer tanks that are thinking, circular and cross-section made of materials compatible with the chemicals to be transported.

They are approximately 8 feet in diameter the ends appear to be flat or almost flat.

The valving is found either ask in a squared off compartment on the back, mounted on the side, just ahead of the trailer wheels.

Design pressures range from 25.3 psi to 500 psi.

Typical commodities are cryogenic liquids, such as liquefied, oxygen, nitrogen, and hydrogen

482
Q

Pressurize tank cars

tub trailer transport

225

A

A semi trailer for transporting bulk, non-liquefied compressed gases, although not a cargo tank is commonly called a tube trailer

The tube trailer consist of a group of seamless still containers, 12 to 48 inches in diameter permanently mounted to a semi trailer YouTube trailer may have a few has three larger cylinders or over 20 smaller ones

Tank design pressure ranges from 2000 to 5000 psi

Typical commodities include boron, trifluoride, hydrogen, nitrogen, and oxygen

483
Q

Pressurized tank cars MC338

225

A

Refrigerated tanker truck,

max working pressure 500 psi with a minimum of 25.3 psi

Typical commodities cryogen
liquid oxygen up to 5000 gallons
nitrogen 7000 gallons
Argon 4000 gallons
CO2

484
Q

Tube trailer (not DOT spec cargo tank)

226

A

-Cylinders are in mounted vehicle frame to meet DOT spec
-Made of steel
Three cylinder sizes used (3AX~3AAX~3T)

Each cylinder must have pressure relief device with vent tube

Remote emergency shut off

Typical commodities, gases, such as hydrogen, helium, carbon monoxide

485
Q

Pneumatic hopper/ dry bulk hopper

227

A

Constructed of aluminum, steel and stainless steel. 3 to 4 compartments.

Top loaded and pressurized bottom offload. Max working pressure of 25 psi

Special features include manhole with dome covers, auxiliary, engine pump

Pressure relief device – frangible disk at max 25psi; working pressure 8-10psi

Typical commodities, ammonium nitrate, oxidizers, plastic pellets, corrosive, solids, food products

486
Q

Freight container

229

A

Reusable container having a volume of 64 ft.³ or more

487
Q

Rail cars

229

A

Welcome to the gently transport it into Taxi, real equipment, freight cars, and tank cars

Freight cars: box, cars, hopper, cars, gondola cars, flat cars

488
Q

Rail tank cars

230-233

A

Non-pressure tank cars-DOT 103, DOT 111

Pressure tank, cars, DOT 105, DOT 112

Special tank cars DOT 113, DOT 107

Primary problems, mechanical and thermal stress

DOT requires markings of tech cars to indicate the car owner capacity and 10 car spec (valuable info to the responder on scene)

489
Q

Rail tank cars

234

A

Nonpressure(with, and without expansion dome) DOT 103, DOT 111

Pressurized DOT 105, DOT 112

Specialized DOT 113, DOT 107

490
Q

Non pressure tank cars

Nonpressure(with, and without expansion dome) DOT 103, DOT 111

235

A

Capacity 4,000-45,000 gallons

Pressures up to 100psig

491
Q

Pressurized tank cars

DOT 105, DOT 112

236

A

Capacity from 4,000-45,000 gallons

Tank test pressure ranges from 100-600psi

Typically have protective housing on top that contains all the valves and other fittings also have a single safety release valve or auxiliary man way cover outside the protective housing

492
Q

Specialize tank cars DOT 113

237

A

Cryogenic, tankers, transport cryogenic liquids

No top fittings; the fittings are typically enclosed and cabinets, either at ground level on both sides between the trucks or wheels

Typical commodities, liquid argon, Etheline, hydrogen, and nitrogen

493
Q

Nonbulk radioactive

240

A

Small, portable containers with a design for more every day. Use them for shipping.

Typically radiographic instruments soil density meters

494
Q

Intermediate, radioactive material containers

240

A

These containers are somewhat larger than non-bulk containers and they’re often used to package the smaller containers for shipping container forms include fiberboard, cardboard boxes, wooden boxes, and crates or steel drum

Check the transportation index

495
Q

Bulk radioactive materials

241

A

These typically are casks transporting certain radioactive materials. This rigid metal packaging ranges in size of the 10 feet in diameter, and 50 feet long some have reinforced rings or cooling fins

496
Q

Chlorine C Kit

244

A

Specialized kit for chlorine rail cars

497
Q

Midland kit

244

A

Pressure rail cars such as chlorine or other similar products

498
Q

Grounding and bonding

247

A

This is done when offloading damage tankers to a clean, tanker to move product safely off scene when the original tanker can no longer be used due to damage

Test ground resistance should be 750-OHMS or less

Connections should be 5-OHMS or less

Meter component should be zero OHMS or less