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Appl Occup Environ Hyg 1994 Sep; 9(9):595-596
The analytical ability of participating laboratories were evaluated in the Proficiency Analytical Testing (PAT) Program to provide assistance in improving their performance. The sets of samples in the PAT Program included metals, silica (14808607), asbestos (1332214) fiber counting, and organic solvents. The reported results of the laboratories for the samples were compared against an acceptable performance limit. In PAT Round 117, conducted in April of 1994, results for the study were submitted from 1,304 participating laboratories. Of those laboratories, 91.3% were rated as overall proficient. The reference values, performance limits, and participants of each sample type were presented. There were 1,366 laboratories rated based on their performance from PAT rounds 114 to 117, July 1993 to June 1994. In determining metals, 91.4% were proficient; for silica, 98.9% were proficient. For asbestos determinations, 94.3% were proficient and for determining organic solvents, 87.6% were proficient. Plans for the future of the program include increased testing for organic solvents.
NIOSH-Author; Analytical-methods; Asbestos-fibers; Silica-dusts; Airborne-particles; Solvent-vapors; Laboratory-testing; Performance-capability
Issue of Publication
Applied Occupational and Environmental Hygiene
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division