4 results for “Union Carbide Corporation”
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Company document · Union Carbide documents · March 12, 1976
Ralph Zumwalde (NIOSH) to E. A. Piersall Transmitting Two NIOSH Papers on Asbestos Exposure and Mortality in Hard Rock Gold Miners (1976)
Cover letter from Ralph Zumwalde (NIOSH) to E. A. Piersall (Union Carbide Metals Division), March 12, 1976, with cc notation to Larrison and Thurber Gillam et al., 'Mortality Patterns Among Hard Rock Gold Miners Exposed to…
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Company document · Union Carbide documents · March 12, 1976
Ralph Zumwalde (NIOSH) to E. A. Piersall Enclosing Two Papers on Asbestiform Mineral Exposure and Mortality in Hard Rock Gold Miners (1976)
Cover letter, R. Zumwalde (NIOSH) to E. A. Piersall (Union Carbide Metals Division), March 12, 1976, with internal xc notation to Larrison and Thurber Gillam et al., 'Mortality Patterns Among Hard Rock Gold Miners Exposed to…
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Company document · Union Carbide documents · March 12, 1976
Ralph Zumwalde (NIOSH) to E. A. Piersall Transmitting Two NIOSH Papers on Asbestos Exposure in a South Dakota Gold Mine (1976)
…R. Zumwalde (NIOSH) to E. A. Piersall (Union Carbide Metals Division), March 12, 1976, with handwritten/typed routing note to Larrison and Thurber Paper: 'Mortality Patterns Among Hard Rock Gold Miners Exposed to an Asbestiform Mineral…
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Company document · Union Carbide documents · July 1972
S. G. Bayer and R. D. Zumwalde, Evaluating Airborne Asbestos Dust: Membrane Filter Sampling and Phase-Contrast Fiber Counting Procedure (1972)
A July 1972 technical manual by Stephen G. Bayer and Ralph D. Zumwalde describing the U.S. Public Health Service method for sampling airborne asbestos dust on membrane filters and counting and sizing fibers by phase-contrast microscopy. It covers…