W. G. Hazard to J. F. McMahon Sending Kaylo Boxcar Dust for Analysis (1949)

A two-page letter of November 10, 1949, from W. G. Hazard of the Owens-Illinois Glass Company to J. F. McMahon, managing director of the Industrial Hygiene Foundation of America. Hazard explained that the Saranac Laboratory had spent three years testing the toxicity of Kaylo dust on animals, and that although the plant's fabricating operations had good exhaust systems, "there is a dust exposure when finished slabs are stacked in box cars for shipment," with recent counts of about 25 to 50 million particles per cubic foot. He sent a "vacuum-cleaner" sample of boxcar dust from the Sayreville, New Jersey, plant and two samples of finished Kaylo, and asked for the amount of asbestos and free silica in them.

In Johns-Manville's index

Johns-Manville's legal department indexed the Motley 1,000 in 1984. Its index describes this document as follows:

W. G. Hazard letter to J. F. McMahon, 11/10/49, requesting the IHF to provide an analysis of a "vacuum cleaner" sample of the dust given off during the loading of Kaylo into boxcars at OIG's Sayreville, New Jersey plant and of two samples of finished Kaylo for any "constituents" that may have some health effects. Hazard states that the Saranac lab has already performed animal inhalation experiments on dust that OIG's employees in the plant actually breathe and that all the fabricating operations are equipped with good dust exhaust systems. In spite of this, there is dust exposure when finished slabs are stacked in boxcars for shipment. Recent dust counts showed this to range from about 25-50 million particles per cubic foot as sampled with an impinger.

Related documents

• Theodore F. Hatch to W. G. Hazard Returning the Saranac Report on Kaylo (1949)

About this copy

This is document 509 of the Motley 1,000, from the set the Manville Personal Injury Settlement Trust's records facility certified as true copies, pages CRMC-Motley1000-Subj-001901 to CRMC-Motley1000-Subj-001902.