Practice question

A 'TLV-TWA' published by the ACGIH represents:

  1. A legally enforceable OSHA limit
  2. A recommended airborne concentration for an 8-hour workday/40-hour week to which most workers may be repeatedly exposed without adverse effect
  3. The concentration that is immediately lethal
  4. The flash point of the substance

Answer: B — A recommended airborne concentration for an 8-hour workday/40-hour week to which most workers may be repeatedly exposed without adverse effect

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