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Document ID (ISN)26750
CIS number 77-505
Year 1976
Convention or series no.
Title Recirculation of exhaust air.
Bibliographic information HEW Publication No.(NIOSH)76-186, National Institute for Occupational Safety and Health, 4676 Columbia Parkway, Cincinnati, Ohio 45226, USA, Feb. 1976. 269p. Illus. 66 ref.
Abstract The first part of this document contains the papers given at the seminar (Cincinnati, Ohio, USA, 23-24 Oct. 1975) to review critically the study on development of criteria for the recirculation of exhaust air after cleaning. The papers covered: threshold limit values, cost effectiveness, performance standards, and re-engineering parameters. There were also an overview, regulatory perspective, energy considerations, air cleaning devices, contaminant monitoring, design criteria, foundry operations, and future directions. The second part describes the study. The criteria reflect contaminant toxicity, air monitoring requirements, air cleaning equipment, reliability analyses and theoretical modeling of system performance. Air monitoring equipment should be automatic and specific for individual contaminants, and have back-up systems. Appendices contain a categorisation of 514 workplace contaminants, the rationale for the assignment of contaminants into the several groups and recommendations for air cleaners.
Descriptors (primary) air purification; exhaust ventilation; harmful substances; airborne dust
Descriptors (secondary) USA; foundries; carbon monoxide; toxic substances; air filtration; dust collectors; reliability; gas adsorption; TLV list; standardization; legislation; sulfur dioxide; design of equipment; conference; vinylidene chloride; monitoring for air contamination; vinyl chloride
Document type E - Books, reports, proceedings
Subject(s) Environmental pollution
Broad subject area(s)
Browse category(ies) Heating and air conditioning
Ventilation