Special Health Hazard (SHH) Codes |
CA |
Carcinogen |
A carcinogen is a substance that causes cancer. Cancer is a group of diseases
characterized by uncontrolled growth and spread of abnormal cells. If the
spread is not controlled, it can result in death. |
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CO |
Corrosive |
Corrosive substances are gases, liquids or solids that cause destruction of
human skin or severe corrosion of containers. The concentration and duration of
exposure control the degree of injury. Acids, caustics, soaps, detergents, and
lye are examples of corrosives. |
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Flammable |
Flammable substances are solids, liquids, vapors or gases that ignite easily
and burn rapidly. These chemicals are classified by their flash point. Flash
point is the lowest temperature at which a liquid will give off vapors in
sufficient concentrations to ignite. Flammable substances are classified into
four groups. The two most hazardous are F4 and F3. |
F4 |
Flammable – 4th degree |
materials that readily vaporize and/or burn readily in the air |
F3 |
Flammable – 3rd degree |
liquids and solids that can be ignited under almost all ambient air conditions |
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MU |
Mutagen |
A mutagen is a substance that causes mutations. A mutation is a change in the
genetic material in a body cell. Mutations can lead to birth defects,
miscarriages, or cancer. |
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Reactive – is used interchangeably with the NPFA (National Fire
Protection Association) term “instability” |
Reactive or unstable chemicals (solid, liquid or gas) are substances that
produce or release energy in the form of heat or an explosion when under
pressure, exposed to light, or subjected to friction or ignition. These
materials may also develop toxic or flammable vapors when mixed with water.
Reactive substances are classified into four groups. The three most hazardous
are R4, R3, and R2. |
R4 |
Reactive – 4th degree |
materials readily capable of detonation or explosive decomposition or explosive
reaction at normal temperature and pressure |
R3 |
Reactive – 3rd degree |
materials capable of detonation or explosive decomposition or explosive
reaction, but which require strong initiating source or which must be heated
under confinement before initiation |
R2 |
Reactive – 2nd degree |
materials normally unstable and readily undergo violent chemical change but do
not detonate |
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TE |
Teratogen |
A teratogen is a substance that causes birth defects by damaging the embryo or
fetus. These chemicals cause specific abnormalities at specific times during
pregnancy. These abnormalities can lead to mental or physical disabilities that
may be fatal. |
If you have any questions, please call the Right to
Know Program at (609) 984-2202. |