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Appendix L - EHS Segregation Scheme

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Key:

  • Hazard Class # – All Hazard Classes must be segregated from other Hazard Classes

    • Class - must segregate from other Classes within Hazard Class
      • Group - recommend to segregate from other groups within class

Hazard Class 1 - Explosives (potentially explosive) Hazard Class 2 - Compressed Gases/Lecture Bottles

  • Class 2.1 - Flammable gases

  • Class 2.2 - Non-Flammable gases
  • Class 2.3 - Poisonous gases
  • Oxidizing gases (separate from everything)
  • Corrosive - acids
  • Corrosive - bases
  • Cyrogenics
  • Pyrophorics

Hazard Class 3 - Flammable liquids

  • Combustible liquids (that do not have another hazard)

Hazard Class 4 - Flammable solids

  • Class 4.2 - Spontaneously combustible

  • Class 4.3 - Dangerous When Wet
  • Class 4.1 - Flammable solids

Hazard Class 5 - Oxidizers

  • Class 5.1 - Oxidizers

    • Liquids
    • Solids
  • Class 5.2 - Organic peroxides

Hazard Class 6 - Poisons

  • Class 6.1 - Poisons

    • Liquids
    • Solids
    • Carcinogens
    • Reproductive hazards (Teratogens, Mutagens)
    • Irritants
    • Organic acids, solid
    • Nonhazardous chemicals
  • Poisonous Inhalation Hazards (PIH)
  • Cyanides
  • Controlled substances
  • Class 6.2 - Biohazards - Infectious agents
    • CDC Select agents

Hazard Class 7 - Radioactives

Hazard Class 8 - Corrosives

  • Inorganic acids

  • Oxidizing acids (Nitric acid and Perchloric acid)
  • Hydrofluoric acid
  • Organic acids, liquid (can store in flammable cabinet)
  • Bases
    • Liquids
    • Solids
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