Hazard Materials Flashcards
circular container w/flat end
indicates contents are at atmospheric pressure to low pressure
spherical containers / cylindrical containers
spherical (ball-shaped) highly efficient pressurized storage for gases in liquid form.
cylindrical container w/rounded ends indicator of pressurized content
non pressurized tank features
- flat sides or ends
pressurized tank features
rounded or spherical ends bolted access points
pressure relief gauge
pressure gauge
what is bulk packaging
greater than…..liquid 119 gal
solid 882 lbs
gas -water capacity 1000lbs
7 mechanisms of harm
TRACEM-P
thermal- radiological -asphyxiating (simple,chemical), CHEMICAL- ETIOLOGICAL/BIOLOGICAL-MECHANICAL-PSYCHOLOGICAL
Weapons of mass destruction definition
(WMD)
Poses in unreasonable risk to people the environment and property
They have the potential to cause mass casualties and damage CBRNE Chemical Biological Radiological Nuclear Explosive
NFPA 1072
Meets Osha’s requirements For awareness operations in technician For hazardous materials
3 training levels for hazardous materials
AWARENESS- Awareness level personnel Perform limited defensive actions so just calling for help evacuating the hazard area and securing the scene
OPERATIONS- Perform defensive actions both with some exceptions they are not expected to come in direct contact with the hazardous materials
OPERATION MISSION SPECIFIC-perform additional defensive tasks and limited offensive actions
E.g using special equipment , performing task where they might come in contact with hazardous material
Nfpa RESPONSE PERSONNEL
HAZARDOUS MATERIALS TECHNICIANS- performs offensive tasks, controlling release , supervise activities of operation level responder
HAZARDOUS MATERIALS INCIDENTS W/SPECIALTY- additional expertise e.g. radiation ,monitoring, detection devices
SPECIALIST- expertise in chemicals, processes ,containers and special ops, in advisory capacity
NFPA 472 APIE PROCESS
STEP 1 .ANALYZE THE INCIDENT
STEP 2. PLAN THE INITIAL RESPONSE
STEP 3. IMPLEMENT THE RESPONSE
STEP 4. EVALUATE THE PROGRESS
Operational level responders
Defensive mode Identified hazard identify response options implement the plan response to mitigate or control release Evaluate the progress
Offensive task allowed by osha
Can be be performed by 1st responder operational level personnel Gasoline Diesel Natural gas Liquefied petroleum gas
Operations missions specific level
Perform tasks such a specialized personal protective equipment or performing technical decontamination
Routes of entry
Inhalation- Breathing has it is materials in through your nose or mouth
Inhalation is the most common exposure route
INGESTION
ABSORPTION
INJECTION
3 mechanisms of harm a
Energy release
Corrosive
Toxicity
TRACEM
THERMAL HAZARD - temperature extreme
RADIOLOGICAL HAZARD-
ASPHYXIATION HAZARD
CHEMICAL HAZARD
ETIOLOGICAL/ BIOLOGICAL HAZARDS- viruses
MECHANICAL HAZARDS- contact striking or friction
Energy release
Presents the greatest Threat
6 types of energy release
Heat, mechanical energy, pressure, electricity, chemical, radiation
Corrosives
Chemicals that destroy or burn living tissue and have destructive effect by virtue of their Corrosive ity Corrosives comprise the largest usage class by volume in the industry
Toxicity
Chemicals or biological substances that cause sickness illness or injury by doing damage on a molecular scale when in contact with the body or considered toxic.
US regulations
Department of Transportation DOT- They regulate air highway pipeline real in water
Environmental Protection Agency EPA- Research in in setting standards for environmental programs
Department of Labor dol- Osha is a part of this regulate safety includes Hazardous materials
Department of Energy DOE- Manages the national nuclear or research in defense programs include storage of high level nuclear waste.
Homeland security- Prevent terrorist attacks cama reduce American vulnerability to terrorism, minimize the damage from potential attacks in natural disasters
Department of Justice DOJ- Assigns Primary responsibility for operational response to threats or acts of terrorism within the US and its territories
The FBI then operates as the on C manager for the federal government
Hazmat Statistics
Records have shown the most has met incidents involve the following products
Flammable combustible liquids such Petroleum products paint products
Corrosives such as sulfuric acid hydrochloric acid and sodium hydroxide
Anhydrous ammonia
Chlorine
Most incidents occur what has it is and tears are being transported via highway
7 clues to the presence of hazardous materials
Occupancy types locations in pre incident survey
Container Shapes
Transportation placards labels and markings
Other markings and colors non transportation
Written resources
Senses
Monitoring and detection devices
Bulk packaging
Maximum capacity is greater than 119 gallons as a receptacle for a liquid
Maximum net mass is greater than 882 pounds or maximum capacity is greater than a 119 gallons as a solid
Water capacity is a 1001 pounds or greater as a gas
Clues to pressure containers
Rounded spherical ends Bolted protective housings Bolted man ways Pressure relief devices Pressure gauges
Clues of a cryogenic container
Contents such as Liquid Liquid oxygen oxygen, nitrogen, helium, hydrogen, argon and liquefied natural gas
Box like loading and unloading stations
Radioactive materials containers
Excepted- Is only use to transport materials with extremely low levels of radio activity that present no risk to the public or environment
INDUSTRIAL - Container that retains and protects the contents door normal transportation activities such as laboratory samples and smoke detectors
TYPE A- Packages that demonstrate their ability to withstand a series of test without releasing their contents
TYPE B- Must demonstrate your ability to withstand tests simulated normal shipping conditions and they must also withstand severe accident conditions without releasing their contents
TYPE C- Very where packages use for high activity materials including plutonium transported by aircraft
Vessel cargo carriers
Marine vessels transport over 90% of the world’s cargo
Unit loading devices ULD
Our containers in aircraft pallets used to consolidate your cargo into a single transportable unit
No military aircraft or transport vehicles me transport internal air lift in helicopter singable units that transport everything including as it is materials
9 hazard class
Class one explosives Class 2 gasses Class 3 flammable liquids Class 4 flammable solids Class 5 oxidizing substances in organic peroxides Class 6 toxic in infectious substances Class 7 radioactive materials Class 8 corrosive substances Class 9 miscellaneous dangerous substances and articles
4 digit identification numbers
The 4 digit identification number must be displayed on bulk containers in 1 of 3 ways Displayed on rail tank cars, cargo taint trucks, portable tanks, bulk packages, table one materials regardless of quantity, certain non bulk packages for example poisonous gasses in specified amounts
The ERG response guide book
Provides a key to the 4 digit identification numbers and the yellow bordered section
ERG does not list any numbers below 1000
Placards
Diamond shape color coded signs on transportation containers to a dentify their contents
May be found on both packages, real tank cars, cargo tank vehicles, portable tanks, unit loading devices containing hazardous materials over 640 ft³ incapacity certain certain non bulk containers
Placard facts
Not required for shipments of infectious substances other regulated materials for domestic transport only ORM d’s Materials of trade limit quantity’s small quantity packages radioactive materials or combustible liquids and non bulk packaging
Some private agriculture in military vehicles me not have placards The hazard class or division number chorusman into the primary hazard class of material must be displayed in the lower corner of the placard The dangerous plaque card is for mix loads where the transport vehicle contains non bulk packages with 2 or more categories of has it is materials that require different placards
Placard facts
Other than class 7 or the dangerous placard text indicating a hazard for exam bowl flammable is not required text may be omitted from the oxygen placard only if the specific ID number is displayed
Containers may have placards even though they appear empty until they are certified as clean
Labels
Labels are 3.9” square on Point diamonds which may or may not have written text that a dentify as the has it is materials with in the packaging
Class 7 radioactive labels must always contain text
Packages with more than one label have more than 1 hazard or product these packages contain a primary label in a subsidiary label
The toxic label is the primary label while the flammable liquid label is the subsidiary
Labels
The cargo aircraft only label is not associated with a particular hazard class this label is used to indicate materials that can not be transported on Passenger aircraft
Markings
Is a descriptive name in identificashun number a weight or a specification includes instructions cautions or UN marks or combination thereof required on the outer packaging of hazardous materials
Markings( Hot)
Is a marking for elevated temperature materials such as molten salt for and molten aluminum can present a thermal hazard in the form of heat
Molten aluminum is generally shipped at temperatures above 1300゚
Properties of elevated temperature materials
Liquid phase at temperature at or above 212゚F
Liquid phase with a flashpoint at or above a 100゚F
Solid fees at a temperature at or above 464゚F
N FPA 704 system (diamond shaped sign)
Recognize method of indicating the presence of hazardous materials at a commercial manufacturing institutional or fix storage facilit
FLAMMABILITY
INSTABILITY
HEALTH
WATER REACTIVE
0 indicates minimal hazard 4 indicates severe hazard
NFPA marking system
Special hazards
Special hazards are located in the 6 o’clock position I have no specified background color however white is most commonly used
2 special hazards are authorized in this position W indicated a usual reactivity with water and OX indicate the material is in oxidizer
Globally harmonized system
Is to promote common ,consistent criteria for classifying chemicals according to their health ,physical and environmental hazards and encourage the use of compatible hazard labels
Osha’s hazard communication standard HCS
Requires employers to identify hazards in the workplace in train employees how to recognize those hazers it requires employer to ensure that all hazardous material containers are labeled tagged mark with their dinner the of the substance contained in them along with appropriate hazard warnings
pre incident surveys should assist responders in identifying and understanding these systems
CAS NUMBERS
Chemical abstract service registry numbers For chemicals
Most chemical databases are searchable by CAS numbers and they are typically included on safety data sheets
Military markings
These markings are used on fix facilities in they may be seen on military vehicles although they are not required
Pesticide labels
The EPA regulates the manufacture and labeling of pesticides in according with GHS pesticide labels in the US and Canada now include the following EPA number Hazard statement Pictographs Precautionary statements Product identifiers Signal word-or warning word Supplier identification
Other symbols and signs
The EPA requires a one warning label on any containers Transformers or capacitors that contain a polychlorinate biphenyl PCB which is considered hazardous because it may cause cancer
Color codes
Red- means danger or stop
Orange- means warning use. energized equipment
Yellow- means caution
Green -marks safety equipment
Blue -marks safety information signage such as labels or markings indicating the type of required PPE
Shipping papers
I = Identification number S = proper shipping name H= hazard class or division P= PACKING GROUP
Shipping papers where are the found?
In trucks in airplanes these papers are placed near the driver or pilot
On ships in barges the papers are placed on the bridge or in the pilot house of a controlling tugboat
Standard transportation commodity code numbers
Every railroad car is marked with the identifying mark that works as he serial number to a dentify the car independently of each other this number on a real car is known as the reporting mark
Identification indicates the car it so the owner and whether or not it is own by a railroad
7 digit number
if it starts with 48 it is a hazardous waste
If it starts with 49 it’s a hazardous material
Safety data sheets
Are the best sources of detail information about it be ticular material to which emergency responders have access Sections consist of Section one indentification Section 2 hazard Identification Section 3 composition information on ingredients Section 4 1st aid measures section 5 fire fighting measures Section 6 accidental release measures Section 7 handling and storage Section 8 exposure controls personal protection Section 9 physical and chemical properties Section 10 stability and reactivity Section 11 toxicological information Section 12 ecological information Section 13 disposal considerations Section 14 transport information Section 15 regulatory information Section 16 other information
ERG book
It is primarily designed for used at incidents occurring on a highway or railroad near me there may be limited value in its application at fix facility locations
OLFACTORY FATIGUE
Hydrogen sulfide in certain other chemicals may cause this you in other words you may cease to smell it even though it still present
Indications of physical action
Wavy vapors over a volatile liquid
Frost or ice buildup near a Leak
Containers deformed by the force of an accident
Activated pressure relief devices
Pinging or popping of heat or cold exposed vessels you
Evidence of chemical reactions
Heat
Unusual or unexpected temperature drop coal
Extraordinary fire conditions
Peeling or discolouration of a containers finish
Splattery or boiling of unheated materials
Distinctively colored vapor clouds
Smoking or self igniting materials
Unexpected deterioration of equipment
Peculiar smells
Unexplained changes in ordinary materials
Symptoms of chemical exposure
Evidence of chemical exposure to the body
Changes in respiration Changes in level of consciousness Abdominal Distress Change in activity level Visual disturbances Skin changes Changes in excretion or thirst Pain
ERG book
4 digit U in number located in the yellow bordered pages
Reference the name of the material involved in the blue bordered pages
materials transportation placard and then reference the 3 digit guide cold associated with the plaque card and the table look blackguards in an initial response guy to use on scene located in the front of the ERG
Reference container profiles in the White Pages in the front of the book
ERG BOOK id number index,( yellow bordered pages ) gives 4 digit un id number
The yellow bordered section in your G enables 1st responders to identify the guide number to consult for the substance and Involved
Green highlighting are toxic inhalation hazards
A (P) following the guide number indicates that a material polymerization which is a violent reaction that releases great amounts of heat and energy
ERG name index blue bordered pages
List dangerous goods in Alphabetical order by material name
ERG initial action guides Orange ordered pages
The books Orange bordered section is the most useful because it provides safety recommendations in general hazards information
ERG potential hazard section
The potential hazards section a dresses to hazard types under separate headers:
Health hazards
Fire or explosion hazards
the highest potential hazard is listed 1st
ERG tables of initial isolation and protection action distances.
GREEN -BORDERED PAGES
Single most critical factor is the concentration of the contaminate in the air
Table one initial isolation and protective action distances
Table 2 water reactive materials which produced toxic gasses
Table 3 initial isolation and protection action distances for different quantities of 6 common TIH gasses
I solution distance all person should be considered for evacuation in all directions by at least a 100’
ERG effectiveness time
If the hazard this material are on fire or have been leaking for longer than 30 minutes this ERG Table does not apply
Some water reactive materials are also TIH materials themselves
Bromine trifluoride
Thionyl chloride
Spills are considered
Below 55 gal small
More than 55 gal large or multiple small packages
Examples of toxic in halation hazard materials most commonly encountered
Ammonia chlorine Ethylene oxide Hydrogen fluoride Sulfur dioxide
ERG establishes a separate initial isolation distance based on a product state of matter
Solids 75’
Liquids a 150’
Gas is 330’
Gases
Research has shown that 1 in 2 t quantities of chlorine in an hydrous ammonia Released in an open area both initially spread in 360゚ radius before being dispersed down when in some situations
Vapor pressure
Vapor pressure is the pressure exerted by a saturated vapor above its own liquid more simply it is pressure her deuced or exerted by the vapors released by a liquid vapor pressure can be viewed as the measure of the tendency of a substance to evaporate
Materials with a vapor pressure over 760 MMHG will be gasses under normal conditions
Higher the temperature of a substance that higher its vapor pressure will be
Vapor pressure
The lower the boiling point the temperature at which a liquid turns into a gas of a material the higher its vapor pressure will be
If a material has a low boiling point it requires less heat to change from liquid into a gas
9 hazard class
- *EXPLOSIVES
- GASES
- FLAMMABLE LIQUID
- FLAMMABLE SOLID
- OXIDIZING SUBSTANCE
- TOXIC/INFECTIOUS
- RADIOACTIVE
- CORROSIVE
- MISC DANGEROUS SUBSTANCES
horse shoe container shape/flat ends trailer
indicates low pressure normally carries liquids
Boiling point
Is the temperature at which a liquid changes to a gas and a given pressure boiling point is a Usually expressed in degrees at sea level air pressure
BLEVE
Most commonly occur when flames contact the tank show above the liquid level or when insufficient water is applied to keep a tank shell cool
Melting point
Is the temperature at which is solid substance changes to a liquid state at normal atmosphere pressure
The freezing point
Is the temperature at which liquid becomes a solid at normal atmosphere pressure
Sublimate
Change directly from a solid into a gas without going into a liquid state
Dry ice, mouth balls sublimated rather than melt
Gasses that are lighter-than-air
Set a lean, ammonia, carbon monoxide, Diborane, Ethylene, helium, hydrogen, hydrogen cyanide, hydrogen fluoride, illuminating’s gasses, methane, neon, nitrogen
Examples of gasses heavier-than-air
Propane, hydrogen sulfide, Ethane, butane, chlorine sulfur dioxide
SOLUBILITY
Test question
In water expresses the Percentage of material by weight that will dissolve in water at ambient temperature
Water solubility is also an important contributor for symptoms development irritant agents that are water soluble usually cause early upper respiratory tract irritation resulting in coffing in throat irritation
Partially water soluble chemicals will penetrate into the lower respiratory system and caused delayed symptoms that include breathing difficulties Pulmonary edema,, coughing
up blood
MISCIBILITY
Describes the ability of 2 or more gasses or liquids to mix with or dissolve into each other
Flash point
Is the minimum temperature at which a liquid or volatile solid gives off sufficient vapors at its lower explosive limit to form in ignite obal mixture with air near its surface
Fire point
Is the temperature at which a liquid or volatile substance gives off enough vapor to support continuous burning
Auto Ignition temperature
Substance is the minimum temperature to which the fuel and air must be heated to initiate self sustain combustion without initiation from in an independent Ignition source
Auto Ignition temperatures
Temps are considerably higher than enough Flash and fire points.
For example the auto Ignition temperature of gasoline is about 536゚F but the flashpoint of gasoline is -45゚F
Corrosivity
Corrosives are 2 categories acids and bases
Test question
However some karosses such as hydrogen peroxide are neither acids nor bases
Corrosives
Acid- Any chemical ionizes dissociates to yield hydrogen ions in water
Acids have PH values of 0 to 6.9 contact with it will cause immediate pain in chemical Flesh Burns
base- Water soluble compound that chemically dissociates in water to form a negatively charged hydrogen ion. Forms salt
Ph values of 7.1-14
Breaks down fatty skin tissue and can’t penetrate deeply into the body
Common sign of exposure greasy slick feeling of the skin
Examples caustic soda, potassium hydroxide a, alkaline materials used in drain cleaners
Reactivity
Describes is relative ability to undergo a chemical reaction with itself or other materials
Reactive materials commonly react vigorously or violently with air, water, heat, light, each other or other materials
Reactivity facts
Wood is not as prone to undergo rapid accidentia it will not burn as easily as he highly flammable liquid such as MEK
Radio activity
The least energetic form of radiation is non ionizing radiation which is visible white in radio
The most energetic in hazardous form of radiation is ionizing radiation
Types of ionizing radiation
Alpha- Energetic positively charge alpha particles emitted from the nucleus during radioactive decay that rapidly lose energy when passing through matter
Particles are usually completely blocked by outer dead Human skin or a sheet of paper
Beta fast moving positively charged protons or negatively charge electron’s emitted from the atom’s nucleus dorne radioactive decay
Travels further than alpha particles can be reduced or stopped by a layer of clothing metal or plexiglas
Beta parkle’s are capable of penetrating the skin and causing radiation damage
Types of ionizing radiation
Gamma high energy photons Weightless pot packets of energy like visible light and x-rays they have neither a mass nor charge but are penetrated
Example potassium 40
Can completely pass through the human body or be absorbed by tissue
Materials such as concrete Earth and led may be useful as a shield against radiation
Neutron particles that have a physical mass but have no electrical charge neutrons are highly penetrating
Shielding from neutron radiation requires materials with high amounts of hydrogen such as oil water in concrete
Protection from radiation
Time -decreased amount of time spent in areas where there is radiation
Distance - Know your dose rate to know the safe distance from the radioactive material increased a distance from a radiation source
Doubling the distance from a point source devised the dose by a factor of 4 this calculation is sometimes referred to as the inverse square law
Shielding create a barrier exposure from I follow is reduced by 50% inside a one story building in 90% at a level below ground
Toxicity
The degree to which a substance causes harm within the body
TOXIC CHEMICAL HAZARD CLASSES
ASPHYXIANTS - 2 types simple in chemical
Simple or gasses that DISPLACES oxygen
CHEMICAL - Are materials that prohibit the body cells from using oxygen may be used in terrorist attacks
IRRITANTS - cause temporary severe inflammation to the eyes skin or respiratory system
Convulsions Involuntary muscle contractions
Carcinogens are known to cause cancer Can contract 10 to 40 years after exposure
Allergens in sensitizer