NFPA = National Fire Protection Agency

WHAT IS IT?   "The mission of the international nonprofit NFPA, established in 1896, is to reduce the worldwide burden of fire and other hazards on the quality of life by providing and advocating consensus codes and standards, research, training, and education."

 

flammability: 4: very flammable 1: combustible
3: readily ignited 0: will not burn
2: ignited w/ heat
health
4: deadly
3: extreme danger
2: hazardous
1: slightly hazardous
0: normal materials
NFPA 704 label

     

reactivity:
4: may detonate
3: shock or heat may detonate
2: violent chemical change
1:unstable if heated
0: stable
NFPA
 Special Symbols:		 OXY = oxidizer ACID = acid
ALK = alkali COR = corrosive
W = keep away from water