| Hazardous
Material Definitions
If you ship or handle any hazardous
type materials please make sure that you hazmat certifications
are up to date.
CLASSES
OF HAZARDOUS MATERIALS
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.
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of the hydrogen atoms have been replaced by organic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, 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.
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 microcuries
per gram.
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