|
CLASSES |
DEFINITION |
| Class A Explosives |
Detonating or otherwise of maximum hazard.
|
Class B Explosives
|
In general, function by rapid combustion
rather than detonation and include some explosive devices such as
special fireworks, flash powders, etc. Flammable hazard. |
| Class C Explosives |
Is certain type of manufactured articles
containing Class A or Class B explosives, or both, as components but in
restricted quantities, and certain types of fireworks? Minimum hazard.
|
Combustible Liquid
|
Is any liquid having a flash point at or
above 100F and below 200 F under the conditions specified in Title 49,
CFR? |
| Compressed Gas |
Is any material or mixture having in the
container a pressure exceeding 40 psia at 70 F or 104 psia at 130 F.
|
| Corrosive Material |
Is any liquid or solid that causes
destruction of human skin tissue or a liquid that has a severe corrosion
rate on steel |
Etiologic Agent
|
Is an etiologic agent means a viable
micro-organism, or its toxin, which causes or may cause human disease
(Sec. 173.386 Refer to the Department of Health, Education and Welfare
Regulations, Title 42, CFR). |
| Explosives |
Is any chemical compound, mixture, or
device the primary or common purpose of which is to function by
explosion. |
| Flammable Gas |
Is any compressed gas meeting the
requirements for lower flammability limit, flammability limit range,
flame projection, or flame propagation criteria. |
Flammable Liquid
|
Is any liquid having a flash point below
100 F under the condition specified in Title 49 |
| Flammable Solids |
Is any solid material, other than explosive
which is liable to cause fires through friction, absorption of moisture,
spontaneous chemical changes, retained heat from manufacturing or
processing, or which can be ignited readily and when ignited burns so
vigorously and persistently as to create a serious transportation
hazard. |
Irritating Materials
|
Is liquid or solid substances, which, upon
contact with fire or when exposed to air, give off dangerous or
intensely irritating fumes, but not including any poisonous material,
Class A. |
| Nonflammable Gas |
Is any compressed gas other than a
flammable compressed gas. |
Organic Peroxide
|
Is an organic compound containing the
vivalent -0-0- structure and which may be considered a derivative of
hydrogen peroxide where one or more of the hydrogen atoms have been
replaced by organic radicals must be classed as an organic peroxide. |
| ORM-A, B or C (Other Regulated Materials)
|
Any material that does not meet the
definition of a hazardous material, other than combustible liquid in
packaging having a capacity of 110 gallons or less, and is specified in
Sec. 172.101 as an ORM material or that possesses one or more of the
characteristics described in ORM-A through D below (Sec. 173.500) Note:
an ORM with a flash point of 100 F to 200 F, when transported with more
than 110 gallons in one container shall be classed as a combustible
liquid. |
| ORM-A |
Is a material which has an anesthetic,
irritating, noxious, toxic or other similar property and which can cause
extreme annoyance or discomfort to passengers and crew in the event of
leakage during transportation. |
| ORM-B |
Is a material (including a solid when wet
with water) capable of causing significant damage to a transport vehicle
or vessel from leakage during transportation. Materials meeting one or
both of the following criteria are ORM-B materials: (1) A liquid
substance that has corrosion rate exceeding 0.250 inch per year (IPY) on
aluminum (nonclad 7075-T6) at a test temperature of 130 F. An acceptable
test is described in NACE Standard TM-01-69, and (2) specifically
designated by name in Sec. 172.101 of the subchapter. |
| ORM-C |
Is a material which has other inherent
characteristics not described as an ORM-A or ORM-B but which makes it
unsuitable for shipment, unless properly identified and prepared for
transportation. |
| ORM-D |
Is a material such as a consumer commodity
which, through otherwise subject to the regulations of the subchapter,
presents a limited hazard during transportation due to its form,
quantity and packaging. |
| Oxidizer |
Is a substance such as chlorate,
permanganate, inorganic peroxide, nitro carbon nitrate, or a nitrate,
that yields oxygen readily to stimulate the combustion of organic
matter. |
| Poison A |
Is extremely dangerous poisonous gas or
liquids of such nature that a very small amount, mixed with air, is
dangerous to life. |
| Poison B |
Is less dangerous poisons. Substances,
liquids or solids (including pastes and semi-solid) other than Class A
or irritating materials which are known to be so toxic to man as to
afford a hazard to health during transportation, or which, in the
absence of adequate data on human toxicity, are presumed to be toxic to
man based on results with test animals. |
| Pyrophoric Liquid |
Any liquid which may ignite spontaneously
when exposed to air the temperature of which is 55 C (130 F) or below. |
| Radioactive Material |
Is any material or combination or materials
that spontaneously emits ionizing radiation and has a specific gravity
greater than 0.002 micro curies per gram |
