2021 TLVs and BEIs with 9th Edition Documentation

2021 TLVs and BEIs with 9th Edition Documentation


The 2021 TLVs and BEIs with 9th Edition Documentation contains all your essential occupational exposure limit materials in one easy to use digital format. This new edition makes it easier to navigate the science and accompanying Documentation for Chemical Substances, BEIs, and Physical Agents. Included is information from: 


  • 2021 TLVs and BEIs book – Includes the first TLV specifically for a nano-sized particle is on the NIC for titanium dioxide. This TLV is of vital importance as the use of nano-sized TiO2 is expanded in the green energy and consumer product markets. 


  • 2021 Guide to Occupational Exposure Values – Includes comparisons of the most recently published values: 2021 Chemical Substance TLVs from ACGIH; AIHA/OARS WEELs; the OSHA Final Rule PELs; RELs from NIOSH; MAKs from the German Commission for the Investigation of Health Hazards of Chemical Compounds in the Workplace; and carcinogenicity designations from ACGIH, OSHA, NIOSH, MAK, IARC, U.S. NTP, and U.S. EPA.


  • 9th Edition TLVs® and BEIs® Documentation – Includes the scientific data from which its TLV or BEI is derived and summarizes and evaluates it. Knowing the basis of each TLV and BEI, as described in its Documentation, is essential to the application of that TLV or BEI.