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A one-page Johns-Manville memo of March 11, 1969, from H. M. Jackson at General Headquarters to all plant, mill, mine, production and division general managers, on the "Membrane Filter Technique for Evaluating Asbestos Fiber Dust Concentrations." Following E. M. Fenner's letter of February 10, Jackson recommended that the industrial hygienist explain the new program "not only for the Plant Manager and his staff, but also for union officers and/or employee groups as well," and said Fenner's department would make time for these groups.
- Author
- H. M. Jackson
- Sent to
- All plant, mill and mine managers; all production managers; all division general managers
- Published by
- Johns-Manville
- Date
- March 11, 1969
- Library no.
- ACL Doc 24494 · asbestosclaims.law/library/24494
- Rights
- Republished under fair use for research and historical study.
Read or download
Read online Download the PDF Memo, March 11, 1969 · 31 KB
What it shows
The memo follows Fenner's announcement that J-M would measure asbestos dust by counting fibers on a membrane filter in the worker's breathing zone. Jackson's addition was that unions and employees should be told about the new method too.
Cited on this site
Cite this document
“H. M. Jackson to All Plant, Mill and Mine Managers on Explaining the Membrane Filter Technique to Unions.” March 11, 1969. Johns-Manville. AsbestosClaims.Law Library, ACL Doc 24494. https://asbestosclaims.law/library/24494.
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