12. NFPA 704 HEALTH 4 = Too dangerous to enter 3 = Extreme danger—Full protective clothing 2 = Hazardous—Breathing apparatus 1 = Slight hazard 0 = No hazard FIRE 4 = Extremely flammable 3 = Ignites at normal temperatures 2 = Ignites when moderately heated 1 = Must be preheated to burn 0 = Will not burn
13. NFPA 704 REACTIVITY 4 = May detonate—Evacuate area if fire present 3 = Shock, heat may detonate—Take cover 2 = Violent chemical change possible 1 = Unstable if heated 0 = Normally stable SPECIFIC HAZARD OX = Oxidizer ACID = Acid ALK = Alkali (Base) COR = Corrosive W = Use NO Water