8 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 · February 1969
S. G. Bayer, R. D. Zummalde and T. A. Brown, Equipment and Procedures for Mounting Millipore Filters and Counting Asbestos Fibres by Phase Contrast Microscopy (1969)
A February 1969 U.S. Public Health Service manual describing equipment and step-by-step procedures for mounting Millipore membrane filters on slides and counting asbestos fibres with a phase contrast microscope. It covers laboratory and microscope…
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Company document · Union Carbide documents · February 1969
S. G. Bayer, R. D. Zummalde and T. A. Brown, Equipment and Procedures for Mounting Millipore Filters and Counting Asbestos Fibres by Phase Contrast Microscopy (1969)
A U.S. Public Health Service technical manual describing how to mount Millipore membrane filters on slides and count asbestos fibres in air samples by phase contrast microscopy. It covers equipment, microscope set-up and Kohler illumination, filter…
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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…
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Company document · Union Carbide documents · February 1980
NIOSH Technical Report: Occupational Exposure to Talc Containing Asbestos, Morbidity, Mortality, and Environmental Studies of Miners and Millers (1980)
A February 1980 NIOSH technical report (DHEW (NIOSH) Publication No. 80-115) on talc miners and millers at a talc mine and mill in the Gouverneur district of upper New York. It presents an industrial hygiene study, a cross-sectional morbidity study…
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Company document · Union Carbide documents · November 1972
Stephen G. Bayer, The Counting and Sizing Procedures, NIOSH Asbestos Fiber Counting Training Text (1972)
A November 1972 NIOSH training text by Stephen G. Bayer on counting and sizing asbestos fibers on membrane filter samples under a microscope. It sets out numbered counting rules, worked examples, a concentration formula and a blank count record…