G. W. Bott to Fred Williams on Air Sampling During the Sawing of Asbestos Material (1973)

Memo from the Industrial Hygiene group reporting air sampling on June 12, 1973 while a machinist sawed discs of Marinite 23 (said by a Johns-Manville sales representative to be about 40% asbestos) in the Building 740 large-scale shop. It reports that four of five samples exceeded the 5 fibers/ml Threshold Limit Value, and it is followed by a results table, a calculation formula and handwritten fiber count sheets.

What the document holds

• Pages 1-3: Memo from G. W. Bott to Fred Williams on air sampling during sawing of Marinite 23, with summary, discussion, and results and conclusions
• Page 2: Table of five asbestos samples (personal and area) with duration and fiber concentrations, and the concentration formula
• Pages 4-8: Handwritten asbestos fiber count record sheets for the samples
• Page 9: Page with grid or chart markings; OCR unreadable

People and organizations

From G. W. Bott (Industrial Hygiene) to Mr. Fred Williams.

• G. W. Bott (author)
• Fred Williams (recipient)
• Union Carbide Corporation (its organization)
• Johns-Manville (named)
• SID Department (named)

Related pages

Pages on our site about what this document covers: Air Sampling · Fiber Counting · Industrial Hygiene · Johns-Manville · Marinite and the SS Morro Castle Disaster | Mesothelioma Claims · Threshold Limit Value (TLV).

About this copy

This is document UC-3178 of the Union Carbide documents, documents produced and used as evidence in asbestos lawsuits against Union Carbide, 9 pages. Production numbers UCC 000334 to UCC 000341.