ACGIH^® is pleased to announce the release of the 2019 edition of this CD-ROM containing two of our most popular reference resources in one product! It contains all of the TLVs^® for Chemical Substances and Physical Agents and all of the BEIs^® (including the Notice of Intended Changes and Appendices) from the 2019 TLVs^®and BEIs^® with links to each substance or agent's Documentation from the Documentation of the Threshold Limit Values and Biological Exposure Indices, 7th Ed. – all in searchable PDF format. Available in both single user and network versions.