What Is Considered Bulk Hazmat
54 community-sourced questions and answers. Free — no login.
Hazardous Material
(DOT Def.) any substance or material that is capable of posing an unreasonable risk to human health, safety, or the environment
Container
is any vessel or receptacle that holds a material.
Drum
A barrel-like nonbulk storage vessel used to store a wide variety of substances, including food-grade materials, corrosives, flammable liquids, and grease. Drums may be constructed of low carbon steel. polyethylene, cardboard, stainless steel, nickel, or other materials.
Above-ground storage tank (AST)
a tank that can hold anywhere from a few hundred gallons to several million gallons of product.
Air Bill
the shipping papers on an airplane
Bill of lading
the shipping papers used for transport of chemicals over roads and highways. Also referred to as a freight bill.
Biological Agents
Disease-Causing bacteria, viruses, and other agents that attack the human body.
Bulk Storage Container
a large-volume container that has an internal volume greater than 119 gallons for liquids and a capacity greater than 882 pounds for solids and greater than 882 pounds for gasses.
Bung
A small opening in a closed-head drum.
Canadian Transport Emergency Centre (CANUTEC)
a national call center located in Ottawa, Canada. This organization serves Canadian responders in much the same way CHEMTREC serves responders in the United States.
Carboy
a glass, plastic, or steel nonbulk storage container. ranging in volume from 5 to 15 gallons.
Cargo Tank
Bulk packaging that is permanently attached to or forms part of a motor vehicle, or is not permanently attached to any motor vehicle, and that, because of its size, construction, or attachment tot a motor vehicle, is loaded or unloaded without being removed from the motor vehicle.
Chemical Transportation Emergency Centre (CHEMTREC)
a U.S. national call center that provides basic chemical information. It is operated by the American Chemistry Council.
Consist
a list of the contents of every car on a train
Cryogenic Liquid (cryogen)
a gaseous substance that has been chilled to the point where it has liquefied; a liquid having a boiling point lower than -150 deg.F at 14.7 psi
Cylinder
a portable, nonbulk, compressed gas container used to hold liquids and gases. Uninsulated compressed gas cylinders are used to store substances such as nitrogen, argon, helium, and oxygen. They have a range of sizes and internal pressures.
Dangerous cargo manifest
the shipping papers on a marine vessel, generally located in a tube-like container.
DOT marking system
a unique system of labels and placards that is used when materials and being transported from one location to another in the United States/ The same marking system is used in Canada by Transport Canada.
Dewar container
a container designed to preserve the temperature of the cold liquid held inside.
Dry Bulk cargo tank
a tank designed to carry bulk goods such as powders, pellets fertilizers, or grain. Such tanks are generally V-shaped with rounded sides that funnel toward the bottom.
Emergency Response Guidebook (ERG)
a preliminary action guide for first responders operating at a hazardous materials incident in coordination with the U.S. DOT labels and placards marking system. The DOT and the Secretariat of Communications and Transportation of Mexico (SCT), along with Transport Canada, jointly developed the ERG.
Emergency Transportation System for the Chemical Industry, Mexico (SETIQ)
a national response center that is the Mexican equivalent of CHEMTREC
Excepted packaging
packaging used to transport materials that meets only general design requirements for any hazardous material. Low-level radioactive substances are commonly shipped in excepted packages, which may be constructed out of heavy cardboard.
Freight bill
the shipping papers used for transport of chemicals along roads and highways. Also referred to as a bill of lading.
Hazardous Materials Information System (HMIS)
a color-coded marking system by which employers give their personnel the necessary information to work safely around chemicals/ The Workplace Hazardous Materials Information System (WHMIS) is the Canadian hazard communication standard.
Industrial Packaging
Packaging used to transport materials that present a limited hazard to the public or the environment. Contaminated equipment is an example of such material, as it contains a non-life-endangering amount of radioactivity. Industrial packaging is classified into 3 categories, based on the strength of the packaging.
Intermodal tank
a bulk container that serves as both a shipping and storage vessel/ Such tanks hold between 5000 and 6000 gallons of product and can be either pressurized or nonpressurized. Intermodal tanks can be shipped by all modes of transportation.
Label
smaller version (4 inch diamond shaped) of a placard. Labels are placed on all four sides of individual boxes and smaller packages that are being transported.
Material Safety Data Sheets (MSDS)
a form, provided by manufacturers and compounders of chemicals, containing information about chemical composition, physical and chemical properties, health and safety hazards, emergency response, and waste disposal of specific material.
MC-306/DOT 406 flammable liquid tanker
such a vehicle typically carries between 6000 and 10,000 gallons of a product such as gasoline or other flammable and combustible materials. The tank is nonpressurized
MC-307/DOT 407 chemical hauler
a tanker with a rounded or horseshoe-shaped tank capable of holding 6000 to 7000 gallons of flammable liquid, mild corrosives, and poisons. The tank has a high internal working pressure.
MC-312/DOT 412 corrosive tanker
a tanker that often carries aggressive (highly reactive) acids such as concentrated sulfuric and nitric acid. It is characterized by several heavy-duty reinforcing rings around the tank and holds approximately 6000 gallons of product.
MC-331 pressure cargo tanker
a tanker that carries materials such as ammonia, propane, Freon, and butane. This type of tank is commonly constructed of steel and has rounded ends and a single open compartment inside. The liquid volume inside the tank varies, ranging from the 1000 gallon delivery truck to the full size 11,000 gallon cargo truck.
MC-338 cryogenic tanker
a low-pressure tanker designed to maintain the low temperature required by the cryogens it carries. A boxlike structure containing the tank control valves is typically attached to the rear of the tanker.
National Response Center (NRC)
an agency maintained and staffed by the U.S. Coast Guard; it should always be notified if a hazard discharges into the environment.
NFPA 704 hazard identification system
a hazardous materials marking system designed for fixed-facility use. It uses a diamond shaped symbol of any size, which itself is broken into four smaller diamonds, each representing a particular property of characteristic of the material.
Nonbulk storage vessel
any container other than bulk storage containers such as drums, bags, compressed gas cylinders, and cryogenic containers. Nonbulk storages vessels hold commonly used commercial and industrial chemicals such as solvents, industrial cleaners, and compounds.
Nonpressurized rail tank car
a railcar equipped with a tank that typically colds general industrial chemicals and consumer products such as corn syrup, flammable and combustible liquids, and mild corrosives.
Pipeline
a length of pipe-including pumps, valves, flanges, control devices, strainers, and similar equiptment-for conveying fluids and gasses.
Pipeline right-of-way
and area, patch , or roadway that extends a certain number of feet on either side of a pipeline and that may contain warning and informational signs about hazardous materials carried in the pipeline.
Radiological Agents
materials that emit radioactivity
Secondary containment
any device or structure that prevents environmental contamination when the primary container or its appurtenances fail. Examples of secondary containment mechanisms include dikes, curbing, and double-walled tanks.
Secondary device
any explosive or incendiary device designed tot harm emergency responders who have responded to an initial event.
Shipping papers
a shipping order, bill of lading, manifest, or other shipping document serving a similar purpose; it usually includes the names and addresses of both the shipper and the receiver as well as a list of the shipped materials along with their quantity and weight.
Signal words
information on a pesticide label that indicates the relative toxicity of the material
Special-use railcar
a boxcar, flat car, cryogenic tank car, or corrosive tank car.
Tote
a portable tank, also referred to as an intermediate bulk container (IBC), that has a capacity in the range of 119 gallons to 703 gallons. It is characterized by a unique style of construction.
Toxic inhalent hazard (TIH)
any gas or volatile liquid that is extremely toxic to humans.
Type A packaging
packaging that is designed to protect its internal radiological contents during normal transportation and in the event of a minor accident.
Type B packaging
packaging that is far more durable than type A, and is designed to prevent a release of the radiological hazard in the case of extreme accidents during transportation. Type B containers must undergo a battery of tests including those involving heavy fire, pressure from submersion, and falls onto spikes and rocky surfaces.
type C packaging
packaging used when radioactive substances must be transported by air
Underground storage tank (UST)
type of tank that can hold anywhere from a few hundred gallons to several million gallons of product. USTs are usually made of aluminum, steel, or plastic.
Vent Pipes
inverted j-shaped tubes that allow for pressure relief or natural venting of the pipeline for maintenance and repairs.
Waybill
shipping papers for railroad transport.
Looking for a different version?
CBTs get updated every year. Search for the exact version you're taking (e.g. "cyber awareness 2025").
Search all study materials