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PAT program: background and current status.

Authors
Esche-CA; Groff-JH
Source
Appl Occup Environ Hyg 1996 Dec; 11(12):1376-1378
NIOSHTIC No.
00234657
Abstract
The background and current status of the Proficiency Analytical Testing (PAT) Program were discussed. The main goal of the PAT Program was regarded as the improvement of laboratory performance. The methods of the PAT Program were described, in which samples of metals, silica (14808607), fibers, and organic solvents, such as benzene (71432), chloroform (67663), and toluene (108883), were mailed to participating laboratories for analysis. The Pat Program was then able to inform these laboratories whether or not their analyses were accurate. As of July, 1996, 1,324 laboratories were enrolled in the PAT Program. Of these laboratories, 1,218 submitted results in round 126. The relative standard deviation (RSD) for the first cadmium (7440439) sample, adjusted to a lower concentration than usual, was 5.5%. The RSD for an asbestos (1332214) fiber sample, a synthetic fiber never tested previously, was 42.3%, the highest RSD determined in this round. The highest numbers of outliers were observed for the four asbestos fiber samples tested. Round 126 was also the first round in which passive monitors were evaluated. The future inclusion of additional organic solvents, such as methyl-ethyl-ketone (78933), methyl-isobutyl-ketone (108101), ethyl-acetate (141786), n-butyl-acetate (123864), and isopropanol (67630), was discussed. Round 127 of the Pat Program, which included chloroform, cadmium, silica, and chrysotile (12001295), was sent to laboratories in October of 1996. The results are forthcoming.
Keywords
NIOSH-Author; Laboratory-techniques; Analytical-methods; Analytical-chemistry; Organic-solvents; Metal-compounds; Asbestos-fibers; Silica-dusts; Occupational-health-programs; Quality-control; Cadmium-compounds
CODEN
AOEHE9
CAS No.
14808-60-7; 71-43-2; 67-66-3; 108-88-3; 7440-43-9; 1332-21-4; 78-93-3; 108-10-1; 141-78-6; 123-86-4; 67-63-0; 12001-29-5
Publication Date
19961201
Document Type
Journal Article
Editors
Esche-CA; Groff-JH
Fiscal Year
1997
NTIS Accession No.
NTIS Price
Issue of Publication
12
ISSN
1047-322X
NIOSH Division
DPSE
Source Name
Applied Occupational and Environmental Hygiene
State
OH
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