Chemical Inventory

All labs are required to maintain an updated chemical inventory. The chemical inventory is maintained and updated in EHS Assistant (EHSA). Only include manufacturer-supplied containers or other primary containers of chemicals in the chemical inventory.

The following MUST be included in your inventory:

  • Any amount of a chemical with one or more of the following characteristics:
    • A Particularly Hazardous Substance (PHS: carcinogens, reproductive hazards, and acutely toxic chemicals).
    • A hazard characteristic of pyrophoric, water reactive, potentially explosive, peroxide forming, corrosive, oxidizing, and/or reducing. Consult the chemical’s label and/or manufacturer provided Safety Data Sheet (SDS) to determine if any of these hazard characteristics apply.
    • A flammable solid (ignition < 212°F) or liquid (flashpoint < 100°F). Consult a manufacturer provided SDS to determine these values.
    • A compressed gas or cryogenic fluid such as liquid nitrogen.
  • Other toxic (as defined in 2010 CA Fire Code) liquids in quantities (measured by container size) of 50 mL or more or solids in quantities of 50 g or more that do not have any of the characteristics listed above.
  • Any liquid in a quantity of 100 mL or more excluding water.

The following may be excluded from your inventory:

  • Water in any quantity.
  • Liquids in quantities of less than 100 mL that are NOT PHS, toxic, flammable, pyrophoric, water reactive, potentially explosive, peroxide forming, corrosive, oxidizing, and/or reducing.
  • Solids that are NOT PHS, toxic, flammable, pyrophoric, water reactive, potentially explosive, peroxide forming, corrosive, oxidizing, and/or reducing.
  • Toxic liquids in quantities less than 50 mL or solids in quantities less than 50 g that are NOT PHS, flammable, pyrophoric, water reactive, potentially explosive, peroxide forming, corrosive, oxidizing, and/or reducing.