Chemical Hazard Classes

Chemical Hazard Classes

This page presents the various criteria used when defining the classes of hazardous chemicals. More detailed criteria for an individual hazard may be found by following the appropriate links below.

  1. Hazard Classifications
  2. OSHA Laboratory Standard Definitions
  3. OSHA Laboratory Standard Hazard Criteria
  4. GHS Pictograms
  1. Hazard Classifications

    • Physical Hazards
    • Health Hazards
    • Flammable Chemicals
    • Corrosive Chemicals
    • Oxidizing Chemicals
    • Simple Asphyxiants
    • Combustible Dusts
    • Pyrophoric Gas

  2. OSHA Laboratory Standard Hazard Criteria

  3. GHS Pictograms

    Health Hazard PictogramFlame PictogramExclamation Mark Pictogram
    Gas Cylinder PictogramCorrosion PictogramExploding Bomb Pictogram
    Flame Over CircleEnvironment PictogramSkull and Crossbones