Industrial Hygiene Department Asbestos Dust Study Sheets on Sawing and Removing Insulation (1971)

A series of handwritten industrial hygiene sampling sheets from September and October 1971 recording airborne asbestos fiber counts taken while workers sawed Kaylo and Johns-Manville pipe insulation and tore out old insulation. The first sheet was requested by a Dr. Joyner. Sheets with completed calculations report concentrations in fibers per milliliter greater than 5 microns, and several sheets record less than 1 fiber per milliliter.

What the document holds

• Page 1: Industrial Hygiene Evaluation and Survey, 9-28-71, Maintenance Dept. insulation shop, sawing Kaylo with vacuum hood and respirators; 8 fibers >5µ/mL for one worker and less than 1 fiber for the other
• Page 2: Asbestos Dust Study, 10-4-71, Insulators, Bldg. 45, tearing out old insulation on manheads and a valve; calculated 3.4 and 3.0 fibers/mL >5µ
• Page 3: Asbestos Dust Study, 10-4-71, Bldg. 216, sawing Kaylo-20 pipe insulation; result <1 fiber/mL
• Page 4: Asbestos Dust Study, 10-4-71, Bldg. 216, sawing Johns-Manville Thermobestos pipe insulation on band saw; result <1 fiber/mL
• Page 5: Asbestos Dust Study, 10-4-71, Bldg. 216, sawing Johns-Manville pipe insulation on band saw; result <1 fiber/mL
• Page 6: Asbestos Dust Study, 10-6-71, Bldg. 216, cutting Kaylo-10 on band saw with partial vacuum shut-off; calculated 7.9 and 6.4 fibers/mL >5µ
• Pages 7-11: Further Asbestos Dust Study sheets from Bldg. 216 on cutting Kaylo-10 and Johns-Manville pipe insulation on band saws (OCR garbled; figures not verified)

People and organizations

From C. Perry (sampler and analyst, Industrial Hygiene Department).

• C. W. Perry (author)
• Industrial Hygiene Department (its organization)
• Johns-Manville (named)
• Maintenance Department (named)
• Union Carbide Corporation (named)

Related pages

Pages on our site about what this document covers: Asbestos insulation: pipe covering, block, and insulating cement · Fiber Counting · Industrial Hygiene · Johns-Manville · Kaylo | Mesothelioma Claims.

About this copy

This is document UC-1080 of the Union Carbide documents, documents produced and used as evidence in asbestos lawsuits against Union Carbide, 11 pages. Production numbers UCTC 10955 to UCTC 10965.