4 results for “Union Carbide Corporation”
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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 · 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…