 Hazardous Material Classification
NFPA hazard identification coding system
Fire Hazard Identification System
 Fire Hazard - Flash Points
4 - Below 73 F
3 - Below 100 F
2 - Below 200 F
1 - Above 200 F
0 - Will not burn
 Health Hazard
4 - Deadly
3 - Extreme danger
2 - Hazardous
1 - Slightly hazardous
0 - Normal material
 Reactivity
4 - May detonate
3 - Shock and heat may detonate
2 - Violent Chemical change
1 - Unstable if heated
0 - Stable
 Specific Hazard
Oxidizer - OXY
Acid - ACID
Alkali - ALK
Corrosive - COR
no water - 
Radiation Hazard - 
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