Hazardous Materials Flashcards
Name some ways in which hazardous materials regulations are applied
Required reporting of hazardous materials to the AHJ
Product Containment
Pressure Relief
Fire Protection
DOT regulates transportation
EPA regulates pesticides, fungicides, rodenticides
List some of the codes and standard that apply to hazardous materials
~ NFPA 400 Hazardous Materials and IFC Part V, Chapters 50-67 regulate facilities that store, package, or use hazardous materials
~ Department of Transportation - Pipeline and Hazardous Materials Safety Administration regulations transportation and pipelines
~ US EPA regulates pesticides, fungicides and rodenticides
ICC: IFC, IBC, IMC
NFPA:
NFPA 1 Fire Code
NFPA 30 and 30A Flammable & Combustible Liquid Code, Motor Vehicle Fuel Dispensing and Repair Garages Code
NFPA 55 Compressed Gases and Cryogenic Fluids Code
NFPA 58 Liquefied Petroleum Gas Code
NFPA 91 Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids
NFPA 400 Hazardous Materials Code
API (American Petroleum Institute)
ASME (American Society of Mechanical Engineers)
ASTM (American Society of Testing and Materials)
CGA (Compressed Gas Association)
Underwriters Laboratories (UL)
What resources can assist inspectors in determining hazardous material classification?
The applicant is responsible for properly classifying the material. NFPA 1 and the IFC give inspectors the authority to require a technical report and opinion prepared by a qualified individual.
Safety Data Sheets (SDS) may not have enough information.
Hazardous Materials Expert Assistance software.
IFC Appendix E, section E103
Wireless Information System for Emergency Responders (WISER)
What makes flammable and combustible liquids the most “misused”?
They are widely available and have a variety of uses including:
- motor vehicle fuels
- food preparation
- lubricants
- semiconductor fabrication
- coatings
- creating plastics
Most misused and have contributed to numerous injuries and death.
What are flammable and combustible liquids and how are they different from each other?
These do not burn, the vapor they release can be ignited and burn. They have higher heat release rates compared to other combustibles. Fires are more difficult to control.
Flammable liquids have a flash point temperature below 100-degrees F and have a boiling point temperature. They are Class I-A through I-C.
Combustible liquids have a flash point temperature above 100-degrees F. They are Class II, III-A, and IIIB.
Describe the three categories of gases
- Nonliquefied compressed gases
- Liquefied compressed gases
- Dissolved gases
Nonliquefied compressed gases do not liquefy at normal temperature and pressure. Can be liquid if cooled below boiling point temperature which converts them to cryogenic fluids. Oxygen, helium, methane, nitrogen.
Liquefied compressed gases become liquids at ordinary temperatures and pressures. Would become solid at the temperature used for cryogenic fluids. Anhydrous ammonia, propane, carbon dioxide.
Dissolved gases are dissolved when placed in a solution with another chemical to stabilize it. Acetylene.
What hazards are associated with cryogenic liquids?
- Inherent hazard of the particular gas, which may be intensified when it is in liquid form
- High liquid-to-vapor ratio
- Extremely low temperatures
All cryogenic liquids (except oxygen) are either asphyxiants or toxic
Can burn or explode
What actions can make flammable solids capable of causing a fire?
- Friction
- Absorption of moisture
- Spontaneous chemical reaction
- pyrophoric materials
- self heating materials
- dangerous-when-wet materials
- Retained heat
Explain the hazard classifications of organic peroxides
Explosive: Rapid decomposition, detonation reactivity hazard
I: Rapid decomposition, deflagration reactivity hazard
II: Moderate decomposition, severe reactivity hazard, very rapid burning rate
III: Moderate reactivity hazard, rapid burning rate
IV: minimal burning rate
Explain the hazard of organic peroxides
- Sensitive to heat
- Releases heat upon decomposition
- Introduction of a contaminant can initiate an uncontrollable reaction
- Decomposition products can be flammable or toxic
What are the hazard categories of solid and liquid oxidizers based upon?
They are divided into four hazard categories based on their ability to accelerate burning, their rate of decomposition, and if their decomposition can ignite combustible (Class A) materials. The higher the Arabic numeral rating, the greater the hazard the solid or liquid oxidizer presents.
Name some examples of pyrophoric materials.
Liquids, solid, or gaseous materials that, even in small quantities and without external ignition sources, can ignite within 5 minutes after coming into contact with air.
Arsine
Silane
Diborane
Sodium-Potassium (Na-K) alloys
Some isotopes of plutonium and uranium
What do unstable materials react to?
They can react adversely due to changes in temperature, pressure, or mechanical or thermal shock.
List the states in which explosives and blasting agents exist.
Solid or liquid states.
How are highly toxic and toxic materials classified?
Highly toxic and toxic materials are capable of producing serious illness or death once they enter the bloodstream.
Threshold Limit Value (TLV) is the concentration of a given material that may be tolerated for an 8-hour exposure during a regular workweek without ill effects.
Classification is based on a material’s acute toxicity LC50 or LD50 value.
LD50 refers to the ingested dose of a given substance that was lethal to 50 percent or more of the test population when they swallowed or ate the substance.
LC50 refers to the concentration in the air of a given substance that killed 50 percent or more of the test population when they inhaled or absorbed the vapors, fumes, or mists of the substance.
How are corrosives classified in fire codes?
The classification of corrosives is when the material causes irreversible alteration or visible destruction to human skin.
How does mixing two or more materials impact hazard classification?
This can create a new compound with its own unique hazards. For example, when solid oxidizer chromium trioxide is mixed with water, it creates chromic acid which is not an oxidizer but a corrosive. The inspector would need to understand the hazards of the original materials and the mixed material.
What is required to identify the appropriate storage classification of incompatible materials?
Need to know the hazard classification of the two materials, review each product’s SDS, and compare the reactivity information. Consult a chemical compatibility chart or matrix to determine how each material should be stored and what separation requirements are needed between the materials.
Incompatible materials are considered separated if:
~ separated by 20 feet or more
~ one of the materials is stored in an approved storage cabinet, exhausted enclosure, or gas cabinet
~ separated by a noncombustible line-of-sight barrier
List some of the resources inspectors must be familiar with and know how to use in order to identify hazardous materials.
Must understand placards and material numbering systems used by: DOT, Transport Canada (TC), Mexican Secretariat for Communications and Transport (SCT), international governing bodies, and others.
UN Classification system and DOT placard and markings system.
Emergency Response Guidebook (ERG)
National Institute for Occupational Safety and Health (NIOSH) Pocket Guide to Chemical Hazards.
Hazardous Materials Guide for First Responders from the US Fire Academy (USFA)
Safety Data Sheets. (SDS)
NFPA 704 System
Compare and contrast DOT placards, labels, and markings.
Placard: Diamond-shaped, color-coded sign. Found on large transport containers (bulk packages, rail tank cars, cargo tank vehicles). Shippers are required to provide them with some exceptions. Includes Hazard Class in the lower corner (1-9) and may have text but only “Dangerous” is required for Class 7. May also include the 4 digit ID number in a black on orange rectangle.
Label: 3.9” square-on-point diamond placed on nonbulk packaging (that may fall off a large transport container) including drums, boxes, bags. Includes Hazard Class in the lower corner for the primary hazard and pictogram.
Marking: descriptive name, ID number, weight, orientation, or specification that includes instructions, cautions, or UN marks (or combo thereof). Placed on outer packaging.
What are some of the types of markings inspectors might encounter?
Hot
Marine Pollutant
Inhalation Hazard
Fumigant
Orientation
ORM-D (other regulated materials)
Inner Packaging (Overpack)
Excepted Quantity
Why is it important for inspectors to be aware of different aspects of the Canadian Dangerous Goods System?
To avoid conflicts between federal, provincial, and local laws. Inspectors should be prepared to notify the proper agency to address a hazard or dangerous commodity.
What are some of the differences between markings in the Mexican Hazard Communication System and those found in the US and Canada?
The Mexican Hazard Communication system is based on the NFPA 704 marking system. Employers may use any alternative system that complies with the objectives of the standard. Caution symbols are triangular rather than round like US and Canada.
Mexican and Canadian placard and labeling systems are virtually identical except in Spanish for Mexico and in English and French for Canada.
Differences between Mexico and US:
~ No DANGEROUS placards in Mexico
~ Spanish proper shipping name on package markings in addition to English
~ HOT for elevated temps not in Mexico only US
~ Flammable liquids does not incorporate provisions for combustible liquids. Combustible liquid requirements only apply in US
Describe the requirements for marking piping and cylinders.
Pipe labels must identify contents and direction of flow, labeled at 25’ max, each change of piping direction, and both sides of floor or ceiling penetrations.
Cylinders are marked on shoulder or wall with name of haz mat, DOT and UN haz mat ID label and hazardous division ID # (used in ERG). Warning statement required if inhalation hazard and its reportable quantity (RQ) if assigned by DOT.
If amount released exceeds RQ then the US Coast Guard National Response Center must be notified.
What must a code official have to determine the MAQ?
The determine the Maximum Allowable Quantity (MAQ):
Material hazard classification, physical state, amount of material that is in storage and use.
Describe examples of control areas.
A control area is a physical boundary inside a building where haz mat can be stored and used as long as MAQ is not exceeded:
~ Area bounded by the floor
~ Exterior walls
~ Roof of a building
~ Areas of a building separated by fire-resistant rated construction
List examples of containers used for nonbulk and bulk packaging
Containers
~ Carbon Steel
~ Plastic
~ Safety Cans
Intermediate Bulk Containers (IBCs) aka Totes:
~ Carbon or Stainless Steel
~ Aluminum
~ High-density polyethylene
~ Multiple-layer fiberboard
box with a plastic liner
Cylinders
Portable Containers
Stationary Tanks (Bulk Packaging)
List types of stationary tanks that may be used for nonbulk and bulk packaging
Shop-fabricated aboveground storage tanks
Field-erected Aboveground Storage Tanks
Underground Storage Tanks
Pressure Vessels
What are some of the things inspectors need to verify when inspecting hazardous materials storage?
Verify conditions match approved plans.
Unauthorized Discharge (leaks)
Piping, Valves, and Fittings
What can an inspector require to clarify processes?
May request a Technical Report and Opinion to clarify a process or potential hazards. An authorized person who can demonstrate understanding of the process, its hazards, and necessary controls regarding the correct rate, pressure, and temperature of processes should prepare the report.
What can an inspector do in response to a unauthorized discharge?
Work to prevent additional incidents such as issues a stop-use order stating equipment cannot be returned to service until required corrections are made. In some cases the hazardous material will need to be removed from the system.
List some of the requirements for piping, valves, and fittings used to convey hazardous materials.
Materials must be of adequate strength, durability, and chemically compatible with the hazardous liquid or solid. Piping systems conveying flammable, pyrophoric, toxic, and corrosive liquids and gases require an excess flow control valve or other means to control flow (must be installed at all pipe diameter changes).
Describe the classification categories for hazardous and high-hazard occupanices
H Hazardous
High Hazard Classifications
H-1: detonation hazard
H-2: deflagration hazard
H-3: support combustion or present other physical hazards
H-4 storage of health hazard materials
What is the purpose of spill control and secondary containment?
To contain an accidental spill and keep it within the occupancy.
Secondary containment is required when the outdoor MAQ is exceeded and in all cases of flammable and combustible liquid storage.
Spill control and secondary containment is not required for compressed or liquefied compressed gases.
List some of the requirements for mechanical ventilation systems.
Designed per IMC and NFPA 91.
Provide adequate air movement to exhaust fumes, vapors, or gases created by a container, piping, or valve or component leak. Mechanical ventilation is not required for flammable solids.
Materials with vapor density > 1 require ventilation openings within 12” of floor.
Vapor density < 1 require ventilation openings within 12” of highest point of room.
Minimum air flow rate of 1 cu.ft. per minute per sq.ft. over the occupancy or space.
Nonmetallic ducts may be required for corrosive materials with compliant flame spread.
Air cannot be recirculated unless specifically designed to remove contaminants. Post release treatment may be required.
Emergency Vent must be properly sized.
List some of the requirements for automatic sprinkler systems in hazardous occupancies.
Per NFPA 13, specialized sprinkler designs must be installed for:
~ flammable & combustible liquids
~ compressed gases that are pyrophoric, flammable, or oxidizers
~ solid & liquid oxidizers and organic peroxides
One method to satisfy NFPA 30 is with in-rack sprinklers with a horizontal barrier to accelerate activation
Hazardous materials responses generally require that responding personnel be specifically trained and equipped to manage a(an): (380)
A. fire.
B. crowd.
C. chemical release.
D. emergency management plan.
C
Who in a business is responsible for understanding the hazards of storing, using, and handling hazardous materials? (380)
A. Fire inspector or city manager
B. Fire department liaison or fire chief
C. Fire inspector or emergency response coordinator
D. Fire department liaison or emergency response coordinator
D
Materials must be assigned the proper classification using the criteria in: (385)
A. state laws.
B. the adopted fire code.
C. manufacturer standards.
D. the facility emergency management plan.
B
When a material presents multiple hazards, fire codes require ____ of the hazards be addressed. (385)
A. all
B. at least half
C. at least 80%
D. the most dangerous
A
What can assist inspectors in determining the proper storage or handling procedures during inspections? (401)
A. Markings
B. Personnel
C. Third-party consultants
D. Manufacturer instructions
A
Which of the following is a detailed information bulletin prepared by the manufacturer or importer of a chemical to describe or give information about hazards? (402)
A. Marking
B. Placard
C. Safety data sheet
D. Manufacturer label
C
A material in a package that is static and not moving is defined as: (430)
A. idle.
B. in use.
C. storage.
D. in transit.
C
What sets limits for the amount of hazardous materials allowed inside a building? (431)
A. Model fire codes
B. State/federal laws
C. Safety data sheets
D. Manufacturer’s standards
A
Packaging for hazardous materials is categorized into how many broad categories? (435)
A. Two
B. Three
C. Four
D. Five
A
When inspecting hazardous materials, it is important that the mechanical integrity and the tightness of the system are maintained to prevent a(an): (449)
A. lawsuit.
B. citation.
C. cost overrun.
D. unauthorized discharge.
D
The burden of reporting the storage and use of hazardous materials rests with: (380)
A. the business.
B. manufacturers.
C. fire inspectors.
D. the fire department.
C
Who is responsible for explaining the site’s emergency response procedures and has access to the facility’s safety data sheets? (380)
A. Fire inspector
B. Property owner
C. Facility legal counsel
D. Fire department liaison
D
When it comes to product containment, what is one of the greater problems inspectors will find? (381)
A. The improper labeling of products
B. The lack of security of the products
C. The training requirements for personnel
D. The design and construction of storage tanks
D
Who evaluates used storage equipment before it can be used again safely? (381)
A. Liaison
B. Fire inspector
C. Property owner
D. Design professional
D
Which storage component can be designed so a container safely vents under controlled fire exposure? (382)
A. Pressure drum
B. Pressure relief
C. Pressure monitor
D. Pressure cylinders
B
What does an inspector rely on to determine if sprinkler discharge density and design area are correct for the stored materials? (382)
A. Locally adopted fire codes
B. Sprinkler manufacturer specifications
C. State/federal laws specific to given classes of hazardous materials
D. A particular NFPA® standard for a given class of hazardous materials
D
Which of the following activities or processes that involve hazardous materials may be exempt from regulation? (382)
A. Pyrophorics
B. Cyrogenic fluids
C. Explosives and blasting agents
D. Pesticides, fungicides, and rodenticides
D
Which organization regulates hazardous material transportation and its pipeline in the U.S.? (383)
A. Department of Commerce (DOC)
B. Department of the Interior (DOI)
C. Department of Transportation (DOT)
D. Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF)
C
To accomplish a code’s intent regarding hazardous materials storage, use, and handling, fire inspectors must become familiar with the applicable standards and: (383)
A. state laws.
B. DOT regulations.
C. the jurisdiction’s adopted codes.
D. the storage facility emergency management plan.
C
What organization has codes or standards that apply to hazardous materials and include the International Fire Code and International Building Code? (384)
A. UL
B. ICC
C. ASTM
D. NFPA®
B
What organization has codes or standards that apply to hazardous materials and includes Boiler and Pressure Vessel Code, Section VIII, Division 1 and 2? (384)
A. UL
B. ICC
C. ASME
D. NFPA®
C
Hazardous materials classifications are based on criteria in: (385)
A. state laws.
B. the adopted fire code.
C. manufacturer standards.
D. the facility emergency management plan.
B
What is one information source an inspector can use to verify proper chemical classification? (385)
A. Site manager
B. Property owner
C. Certificate of Occupancy
D. Certificate of Residency
C
Which resource available to assist inspectors in determining classifications is a free internet-based search engine and a compilation of a number of databases developed by several U.S. agencies? (386)
A. NFPA® 400
B. Appendix E in the IFC
C. Hazardous Materials Expert Assistant
D. Wireless Information System for Emergency Responders
D
Which resource available to assist inspectors in determining classifications contains about 8,000 hazardous materials and compounds? (386)
A. NFPA® 400
B. Appendix E in the IFC
C. Hazardous Materials Expert Assistant
D. Wireless Information System for Emergency Responders
C
Which resource available to assist inspectors in determining classifications features guidance on the steps to take to evaluate the hazards of a material? (386)
A. NFPA® 400
B. Appendix E in the IFC
C. Hazardous Materials Expert Assistant
D. Wireless Information System for Emergency Responders
B
How many classes of physical hazard materials are there? (386)
A. Ten
B. Twenty
C. Fifty
D. Seventy-five
A
What is the most common class of hazardous material that inspectors will encounter? (386)
A. Organic peroxides
B. Water-reactive materials
C. Explosives and blasting agents
D. Flammable and combustible liquids
D
A liquid is classified as either flammable or combustible when it contains: (386)
A. carbon and nitrogen.
B. carbon and hydrogen.
C. nitrogen and phosphorus.
D. hydrogen and phosphorus.
B
Gases that do not liquefy at normal temperature and pressure are: (388)
A. dissolved gases.
B. liquefied compressed gases.
C. nonliquefied compressed gases.
D. nondissolved compressed gases.
C
Which gases become liquids at ordinary temperatures and pressures? (388)
A. Dissolved gases
B. Liquefied compressed gases
C. Nonliquefied compressed gases
D. Nondissolved compressed gases
B
Which of the following is a hazard associated with cryogenic liquids? (389)
A. Low liquid-to-vapor ratio
B. Extremely low temperatures
C. Extremely high temperatures
D. Nondissolved compressed gases
B
Flammable solids have an ignition temperature of: (390)
A. less than 167ºF (75ºC).
B. more than 167ºF (75ºC).
C. less than 212ºF (100ºC).
D. more than 212ºF (100ºC).
C