| 0 |
Material
that in itself is normally stable, even under fire exposure
conditions, and is not reactive with water.
|
Example:
liquid nitrogen |
| 1 |
Material
that in itself is normally stable, but which can become unstable
at elevated temperatures and pressures.
|
Example:
phosphorus (red or white) |
| 2 |
Material
that readily undergoes violent chemical change at elevated temperatures
and pressures or which reacts violently with water or which
may form explosive mixtures with water.
|
Example:
calcium metal |
| 3 |
Material
that in itself is capable of detonation or explosive decomposition
or reaction but requires a strong initiating source or which
must be heated under confinement before initiation or which
reacts explosively with water.
|
Example:
fluorine gas |
| 4 |
Material
that in itself is readily capable of detonation or of explosive
decomposition or reaction at normal temperatures and pressures.
|
Example:
trinitrotoluene (TNT)
|
