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Industrial Hygiene Walk-Through Report, Cyprus Industrial Minerals, Keeler Mill, Keeler, California, Report No. IWS-036-22.

Authors
Ludwig-HR; Sandusky-TE
Source
NIOSH 1976 Jul:10 pages
Link
NIOSHTIC No.
00192779
Abstract
A walk through survey was conducted at Cyprus Industrial Minerals (SIC-1499), Keeler Mill, in Keeler, California, as part of a larger study to compile necessary data to characterize talc (14807966) composition in the United States. Cyprus Mines Corporation acquired the Keeler Mill from Sierra Talc and Clay in 1964. This mill processed talc from five different mines in California and Nevada. Five employees were employed at this site, 5 days a week during the single 8 hour shift. The stockpiled talc was picked up by a front end loader and dumped into a crusher before being sent to a roller mill. This product may be bagged or loaded in bulk or may be further reduced in size in a vertical mill. Over a dozen blends and grades of talc from the various mines were processed for use in paints, ceramics, and pharmaceuticals. The health hazards include potential excessive dust and noise exposures. Work histories and Social Security numbers were available, including lost time accident data back to at least 1964. The authors recommend that an audiometric hearing program be instituted to ascertain the effectiveness of the current hearing protection offered, that more effective ventilation around packing machines be used to control dust levels, and that a vacuum type system be used for cleanup of spillage instead of sweeping or shoveling.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; IWS-036-22; Region-9; Work-practices; Personal-protective-equipment; Control-technology; Mine-workers; Mining-industry; Pulmonary-system-disorders; Airborne-dusts; Mineral-dusts; Noise-exposure;
CAS No.
14807-96-6;
Publication Date
19760720
Document Type
Industry Wide;
Fiscal Year
1976
NTIS Accession No.
PB90-162280
NTIS Price
A02
Identifying No.
IWS-036-22
NIOSH Division
DSHEFS;
Priority Area
Control Technology and Personal Protective Equipment; Research Tools and Approaches; Control-technology; Asthma and Chronic Obstructive Pulmonary Disease;
SIC Code
1499;
Source Name
Division of Surveillance, Hazard Evaluations and Field Studies, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. IWS-036-22, 10 pages
State
CA; NV; OH;
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