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National Fire Protection Association (NFPA) Hazard Rating Diamond

National Fire Protection Association (NFPA) Hazard Rating Diamond. Special Hazard - WHITE. Hazard Rating Severe Serious Dangerous Minor 0 Slight. Flammability Hazard - RED. Health Hazard - BLUE. 3. NFPA Diamond. 1. 0. Reactivity Hazard - YELLOW. OX. 3. 1. 0. 3. OX.

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National Fire Protection Association (NFPA) Hazard Rating Diamond

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  1. National Fire Protection Association (NFPA)Hazard Rating Diamond

  2. Special Hazard - WHITE Hazard Rating Severe Serious Dangerous Minor 0 Slight Flammability Hazard - RED Health Hazard - BLUE 3 NFPA Diamond 1 0 Reactivity Hazard - YELLOW OX

  3. 3 1 0 3 OX Serious Flammability Hazard Rating Flammability Rating “3” • rapidly vaporizes at normal temperature and pressure • rapidly disperses into air • burns readily Includes: • very flammable gases • extremely volatile liquids • dust that readily burns • dust that explodes in air

  4. 3 1 0 0 OX Slight Health Hazard Rating Health Rating “0”• exposure under fire conditions offer no hazard beyond that of combustible material

  5. 3 1 0 1 OX Minor Reactivity Hazard Rating Reactivity Rating “1”• materials must be preheated before ignition can occur• includes most ordinary combustible materials

  6. 3 1 0 OX OX Special Hazard Rating Special Hazard Rating “OX” • materials, on exposure under fire conditions, would offer no hazard beyond that of combustible material

  7. What does this NFPA Diamond mean? 3 4 2 W

  8. White – Special HazardThe white "special notice" area can contain several symbols. The following symbols are defined by the NFPA 704 standard: • W: reacts with Water in an unusual or dangerous manner (e.g., caesium, sodium) • OX or OXY: Oxidizer (e.g., potassium perchlorate, ammonium nitrate) • SA: Simple asphyxiant gas (includes nitrogen, helium, neon, argon, krypton, or xenon)

  9. Non-standard symbols:Note: These symbols are not part of the NFPA 704 standard, but occasionally used in an unofficial manner. The use of non-standard symbols or text may be permitted, required or disallowed by theauthority having jurisdiction(e.g., fire department). • COR: Corrosive; strong acid or base (e.g. sulfuric acid, potassium hydroxide) • ACID and ALK to be more specific. • BIO: Biological hazard (e.g., smallpox virus) • POI: Poisonous (e.g. Spider Venom), • (the Radioactive trefoil): is radioactive (e.g., plutonium, uranium) • CRY or CRYO: Cryogenic (e.g. Liquid Nitrogen)

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