K. S. Lane to C. Benjamin and Others on the Revised Asbestos Toxicology Report (1969)

Internal Union Carbide letter in which Dr. K. S. Lane told nine recipients that he and Dr. Dernehl had revised the asbestos memorandum issued in 1964. He listed the lowering of the Threshold Limit Value from 5 to 2 million particles per cubic foot as the major change and noted a brief discussion of mesotheliomas. The enclosure is an "Asbestos Toxicology Report" in a revised version and an earlier version that uses the 5 million figure.

What the document holds

• Page 1: Cover letter from K. S. Lane, M.D., to distribution, April 3, 1969, transmitting the revised asbestos memorandum
• Pages 2-5: Revised Asbestos Toxicology Report text (2 million particles per cubic foot TLV, mesothelioma discussion); page 5 is unreadable in the OCR
• Pages 6-7: Asbestos Toxicology Report on Union Carbide letterhead, undated, using the 5 million particles per cubic foot TLV, signed by Carl U. Dernehl and K. S. Lane

People and organizations

From K. S. Lane, M.D. (Assistant Medical Director, Medical Department); Carl U. Dernehl, M. D. (Director of Toxicology (co-author of the enclosed report)) to C. Benjamin; T. F. Frangos; B. E. Godard; J. L. Myers; J. A. Riddle; N. J. Setter; J. T. Sinclair; J. R. Stickney; W. S. Young.

• Carl U. Dernehl (author)
• K. S. Lane (author)
• C. Benjamin (recipient)
• Tom Frangos (recipient)
• B. E. Godard (recipient)
• John L. Myers (recipient)
• John A. Riddle (recipient)
• N. J. Setter (recipient)
• J. T. Sinclair (recipient)
• J. R. Stickney (recipient)
• W. S. Young (recipient)
• Medical Department (its organization)
• Union Carbide Corporation (its organization)
• ACGIH (named)

Related pages

Pages on our site about what this document covers: Mesothelioma: What It Is, How It's Diagnosed, and How It's Treated · Threshold Limit Value (TLV).

About this copy

This is document UC-5143 of the Union Carbide documents, documents produced and used as evidence in asbestos lawsuits against Union Carbide, 7 pages.