NIOSH Publishes Final IDLH Profiles for 14 Chemicals

Friday, April 28, 2017

NIOSH recently published the final Immediately Dangerous to Life or Health (IDLH) Value Profiles for 14 chemicals:

• Iron Pentacarbonyl: https://www.cdc.gov/niosh/docs/2016-166/
• Acrylonitrile: https://www.cdc.gov/niosh/docs/2016-167/
• 1,1-Dichloro-1-Fluoroethane (HCFC-141b): https://www.cdc.gov/niosh/docs/2016-168/
• Chloroacetyl Chloride: https://www.cdc.gov/niosh/docs/2016-169/
• Chlorine Pentafluoride: https://www.cdc.gov/niosh/docs/2016-170/
• Furan: https://www.cdc.gov/niosh/docs/2016-171/
• Hexafluoroacetone: https://www.cdc.gov/niosh/docs/2016-172/
• n-Butyl Acrylate: https://www.cdc.gov/niosh/docs/2016-173/
• Butane: https://www.cdc.gov/niosh/docs/2016-174/
• Benzontrile: https://www.cdc.gov/niosh/docs/2017-104/
• Methyl Isocynate: https://www.cdc.gov/niosh/docs/2017-105/
• Bromine Pentafluoride: https://www.cdc.gov/niosh/docs/2017-106/
• 1,3-Butadiene: https://www.cdc.gov/niosh/docs/2017-107/
• Diketene: https://www.cdc.gov/niosh/docs/2017-108/

The profiles summarize the health hazards of acute exposures to high airborne concentrations of a chemical and discuss the reasoning for the chemical's proposed IDLH value. The values are based on a 30-minute exposure duration and, according to NIOSH, are the maximum levels above which only a highly reliable breathing apparatus that provides "maximum worker protection" is permitted.

View the Federal Register notice here.

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