OSHA Annotated PELs Table

From the OSHA website page on Permissible Exposure Levels:

“OSHA recognizes that many of its permissible exposure limits (PELs) are outdated and inadequate for ensuring protection of worker health. Most of OSHA’s PELs were issued shortly after adoption of the Occupational Safety and Health (OSH) Act in 1970, and have not been updated since that time. Section 6(a) of the OSH Act granted the Agency the authority to adopt existing Federal standards or national consensus standards as enforceable OSHA standards. Most of the PELs contained in the Z-Tables of 29 CFR 1910.1000 were adopted from the Walsh-Healy Public Contracts Act as existing Federal standards for general industry. These in turn had been adopted from the 1968 Threshold Limit Values (TLVs®) of the American Conference of Governmental Industrial Hygienists (ACGIH®). Some consensus standards from the American Standards Association were also adopted at that time, following the 6(a) procedures. Comparable PELs were adopted for shipyards (29 CFR 1915.1000) and construction (29 CFR 1926.55).”

Because of this, OSHA has made available an online tool that allows you to check the PEL on almost any chemical. Simply go to https://www.osha.gov/dsg/annotated-pels/index.html and click on the Table Z-1 , Table Z-2 or Table Z-3 (depending on where your chemical is listed) to find the most up-to-date limits.

 

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