4 |
Danger |
May be fatal on short exposure. Specialized protective equipment required |
3 |
Warning |
Corrosive or toxic. Avoid skin contact or inhalation |
2 |
Warning |
May be harmful if inhaled or absorbed |
4 |
Danger |
Flammable gas or extremely flammable liquid |
3 |
Warning |
Flammable liquid flash point below 100° F |
2 |
Caution |
Combustible liquid flash point of 100° to 200° F |
4 |
Danger |
Explosive material at room temperature |
3 |
Danger |
May be explosive if shocked, heated under confinement or mixed with water |
2 |
Warning |
Unstable or may react violently if mixed with water |
1 |
Caution |
May react if heated or mixed with water but not violently |
0 |
Stable |
Not reactive when mixed with water |
