nfpa diamond 704 2-4-1 alk sign, , isolate on white background label. eps10

241 704 battery acetylene acid alkaline allyl alcohol ammonia ammonium phosphate background blue carbon dioxide chloroform code deet diamond diesel emergency fire flammability fuel gas gasoline ghs hazard hazmat health hydrogen label material national osha propane propene protection pyrophoric red safety sign special specifications standard substance symbol table tnt toxic white yellow