National Fire Protection Association (NFPA) Hazard Rating Diamond
3 1 OX NFPA Diamond Flammability Hazard Reactivity Health Hazard 1 Health Hazard Reactivity Hazard NFPA Diamond OX Hazard Rating Severe Serious Dangerous Minor 0 Slight Special Hazard
3 3 1 OX Serious Flammability Hazard Rating Flammability Rating “3” OX 1 Flammability Rating “3” • rapidly vaporizes at normal temperature and pressure • rapidly disperses into air • burns readily NFPA Flammability Rating 3 Includes: • very flammable gases • extremely volatile liquids • dust that readily burns • dust that explodes in air
Slight Health Hazard Rating NFPA Health Rating 3 OX 1 Health Rating “0” • exposure under fire conditions offer no hazard beyond that of combustible material
NFPA Reactivity Rating Minor Reactivity Hazard Rating NFPA Reactivity Rating 3 OX 1 1 Reactivity Rating “1” • materials must be preheated before ignition can occur • includes most ordinary combustible materials
OX 3 1 OX Special Hazard Rating NFPA Special Rating OX 1 Special Hazard Rating “OX” • materials, on exposure under fire conditions, would offer no hazard beyond that of combustible material OX
What does this NFPA Diamond mean? 3 2 4 W