I. H. Sloane to H. M. Jackson on Respirator Cleaning and Issue at the Asbestos, Quebec, Mine and Mill (1954)

A one-page memo from I. H. Sloane to H. M. Jackson, manager of Johns-Manville's industrial health program, describing the respirator program planned for the company's mine and mill at Asbestos, Quebec. A respirator cleaning unit already ran in the Underground Mine and was to move to a cleaning room in the New Mill, where cleaned respirators would be bagged and placed in numbered racks for each man. Sloane wrote that employees would resist shared respirators, and that experience in the Underground showed that unless the issuing of respirators was under the control of a responsible person "many difficulties arise."

In Johns-Manville's chronology

Johns-Manville's own chronology of what the company knew describes this document as follows:

I.H. Sloane in a memorandum to H.M. Jackson, 4/29/54, discusses J-M's proposed respirator distribution and cleaning procedures at the Asbestos mine and mill. Since employees would strongly resist the use of non-personal respirators, personalized respirators are to be issued. "In addition, our experience in the Underground Mine is that unless the issuing of respirators is under the control of a responsible person, many difficulties arise."