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Critique of 1985 ACGIH report on particle size-selective sampling in the workplace.

Authors
Bartley-DL; Doemeny-LJ
Source
Am Ind Hyg Assoc J 1986 Aug; 47(8):443-447
NIOSHTIC No.
00164115
Abstract
The 1985 American Conference of Governmental Industrial Hygienists (ACGIH) report containing proposals for dust sampler performance requirements was critiqued. The relation between proposed sampling efficiency envelopes or bands and permissible concentration measurement accuracy was investigated. The overall accuracy (both bias and imprecision) limited by the criteria was estimated for sampling of coal mine dust characterized in previous studies. Accuracy in sampling log normal dust distributions with several extreme allowable samplers was determined. When the dust mass median diameter was 18.6microm and the geometric standard deviation was 2.3, the net error ranged from -64.5 percent to 113.1 percent. Evaluation of these results with regards to curves depicting bias and imprecision permissible by ACGIH criteria, indicated that some acceptable samplers would give readings about six times as large as other samplers. The authors conclude that the proposed ACGIH criteria not only limit the class of permissible samplers, but also allow too much variation in estimates from single dust clouds. A reworking of the sampler criteria is recommended.
Keywords
NIOSH-Author; NIOSH-Publication; Dust-samplers; Dust-particles; Air-sampling-equipment; Standards; Mathematical-models
CODEN
AIHAAP
Publication Date
19860801
Document Type
Journal Article
Fiscal Year
1986
NTIS Accession No.
NTIS Price
Issue of Publication
8
ISSN
0002-8894
Source Name
American Industrial Hygiene Association Journal
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