Search the Cleanroom:
Home   |   Contact   |   Site Map
Navigation Menu

The NFPA Diamond

  1. Expand All Compress All
  2. The NFPA Diamond

  3. The NFPA diamond is designed to give general hazard information for chemicals. Click on the hazards/colors for the specific hazards represented by the numbers.
  4. Red: Fire Hazard

    1. 0 Will not burn
    2. 1 Must be preheated for ignition; flashpoint above 200F (93C)
    3. 2 Must be moderately heated for ignition, flashpoint above 100F (38C)
    4. 3 Ignition may occur under most ambient conditions, flashpoint below 100F (38C)
    5. 4 Extremely flammable and will readily disperse through air under standard conditions, flashpoint below 73F (23C)
  5. Blue: Health Hazard

    1. 0 Hazard no greater than ordinary material
    2. 1 May cause irritation; minimal residual injury
    3. 2 Intense or prolonged exposure may cause incapacitation; residual injury may occur if not treated
    4. 3 Exposure could cause serious injury even if treated
    5. 4 Exposure may cause death
  6. Yellow: Reactivity Hazard

    1. 0 Stable
    2. 1 May become unstable at elevated temperatures and pressures, may be mildly water reactive
    3. 2 Unstable; may undergo violent decomposition, but will not detonate. May form explosive mixtures with water
    4. 3 Detonates with strong ignition source
    5. 4 Readily detonates
  7. White: Special Hazard

    1. OX Strong Oxidizer
    2. water reactive
  8. Other Symbols Commonly Seen (these are not official NFPA symbols)

    1. ACID - Indicates an acid
    2. ALK - Indicates an alkali or base
    3. COR - Indicates the chemical is corrosive
    4. radioactive
    5. corrosive
    6. poison
    7. flammable solid
    8. oxidizer
    9. biohazard
    10. irritant
    11. flammable gas or liquid
    12. dangerous when wet
  9. Return to Safety and Protocol Main Page

Maintained by ECEn IMMERSE Web Team.
Copyright © 1994-Present. Brigham Young University. All Rights Reserved.