๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A guide to industrial respiratory protection : Pritchard, J.A. National Institute for Occupation Safety and Health, Cincinnati, Ohio, HEW Publication No (NIOSH) 76-189, Jun 1976, 157 pp. Abstr in: CIS Abstracts (CIS 77-1115)


Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
274 KB
Volume
9
Category
Article
ISSN
0003-6870

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โœฆ Synopsis


recent experience and an extensive literature search. This has produced a greater understanding of the effect of factors such as the presence of the sun in the observer's view, and the problems of designing a filter to cater for a variety of illumination conditions. The need for additional work in defined areas is indicated. Noise 9.3.28 (74077) Lafon, J.C.


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