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HHE determination report no. HHE-74-130-229, I. F. Manufacturing Company, Division of Ridge Tool, New Philadelphia, Ohio.

Authors
Rivera-RO
Source
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE 74-130-229, 1975 Oct; :1-10
NIOSHTIC No.
00049985
Abstract
Environmental evaluations conducted by NIOSH investigators and lack of medical symptomatology and toxicity information indicate that employees in the core room of a foundry engaged in the manufacture of a variety of tools (SIC-3546) are not exposed to toxic concentrations of triethylamine (121448) because of adopted work practices. However, triethylamine concentrations are potentially toxic in the immediate vicinity of the one core blow machine used for this cold box process. This is also true of free silica (7631869). Potentially toxic concentrations of free silica were found in the immediate vicinity of the bucket elevator, but not in the operator's breathing zone.
Keywords
NIOSH-Health-Hazard-Evaluation; NIOSH-Author; HHE-74-130-229; Region-5; Hazards-Confirmed; Working-conditions; Air-contamination; Air-quality-measurement; Silica-dusts; Dust-control; Foundry-practice; Tertiary-amines; Industrial-emission-sources; Coremaking; Toxicology; Author Keywords: triethylamine; TEA; silica
CAS No.
121-44-8; 7631-86-9
Publication Date
19751001
Document Type
Field Studies; Health Hazard Evaluation
Fiscal Year
1976
NTIS Accession No.
PB-249409
NTIS Price
A02
Identifying No.
HHE-74-130-229
NIOSH Division
DSHEFS
SIC Code
3546
Source Name
National Institute for Occupational Safety and Health
State
OH
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