2023 TLVs and BEIs Based on the Documentation of the Threshold Limit Values for Chemical Substances and Physical Agents

The American Conference of Governmental Industrial Hygienists (ACGIH®)
is a private, not-for-profit, nongovernmental corporation whose members are
industrial hygienists or other occupational health and safety professionals
dedicated to promoting health and safety within the workplace. ACGIH is a
scientific association. ACGIH is not a standards-setting body. As a scientific
organization, it has established committees that review the existing published,
peer-reviewed scientific literature. ACGIH publishes guidelines known as
Threshold Limit Values (TLVs® ) and Biological Exposure Indices (BEIs®)
for use by industrial hygienists in making decisions regarding safe levels of
exposure to various chemical and physical agents found in the workplace. In
using these guidelines, industrial hygienists are cautioned that the TLVs and
BEIs are only one of multiple factors to be considered in evaluating specific
workplace situations and conditions.