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Explosives is
any chemical compound, mixture, or device
the primary or common purpose of which is
to function by explosion.
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 types 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.
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.
Flammable Liquid
is any liquid having a flash point below
100 F under the condition specified in Title
49
Pyrophoric Liquid
Any liquid which may ignite spontaneously
when exposed to air the temperature of which
is 55 C (130 F) or below.
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.
Flammable Gas
is any compressed gas meeting the requirements
for lower flammability limit, flammability
limit range, flame projection, or flame
propagation criteria.
Nonflammable Gas
is any compressed gas other than a flammable
compressed gas.
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.
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one or more of the hydrogen atoms have been
replaced by organic radicals must be classed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.
Oxidizer is a
substance such as chlorate, permanganate,
inorganic peroxide, notro carbo nitrate,
or a nitrate, that yields oxygen readily
to stimulate the combustion of organic matter.
Poison A is extremely
dangerous poisonous gases 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.
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.
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).
Radioactive Material
is any material or combination or materials,
that spontaneously emits ionizing radiation
and has a specific gravity greater than
0.002 microcuries per gram.
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.
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