Johns-Manville Asbestos Fibre Division Industrial Hygiene Committee Minutes on Dryer Dust and Noise (1961)

Two pages of minutes of the Industrial Hygiene Committee of J-M's Asbestos Fibre Division, chaired by J. M. Fletcher. The first page, of October 5, 1961, reports that a new temperature control had not cured the blocking of the Dustex collectors on the dryer stacks, and that "good maintenance is the key in keeping emission dust to a minimum with our present collection system"; the committee asked for three emission tests a quarter. It also notes noise tests in the dryers in the 100-decibel range, with "95 db. is J-M acceptable limit," and a new lunch room and toilet for the dryer building. The second page, the end of the minutes of April 5, 1960, asks Dr. Grainger to look into toilet seat covers and records plans to stop spitting in the buildings.

What it shows

The Asbestos Fibre Division was J-M's fiber mining and milling business, probably here its operations at Asbestos, Quebec, under Canadian Johns-Manville; Dr. T. R. Grainger was the Canadian company's doctor there. The minutes show dust from the mill dryers escaping through the stacks and being managed by maintenance and testing rather than new equipment. Copies went to H. M. Jackson at J-M's headquarters.