ACGIH has published its annual update of the booklet “2020 TLVs and BEIs”. This provides a readily accessible reference for comparing the most recently published occupational exposure limits by various expert groups (including ACGIH’s own recommended threshold limit values and biological exposure indices), for hundreds of industrial chemicals and physical agents. New values for ten compounds have been adopted:

  • acrylamide
  • 4-tert-butylbenzoic acid
  • cyclohexene
  • formamide
  • hexazinone
  • methyl isobutyl carbinol
  • resin acids
  • styrene
  • styrene oxide
  • sulfur pentafluoride

American Conference of Governmental Industrial Hygienists (2020). 2020 TLVs® and BEIs®. ISBN 978-1-607261-12-4.


The above items were taken from the May 2020 issue of Toxicology and Regulatory News which is sent automatically to members of bibra.

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