Specific gravity adjustment of urine analysis results
Analysis of urine samples for compounds such as lead, phenol, or 4,4'-methylene bis (2-chloroaniline) (MBOCA) are often adjusted for specific gravity following a recommendation in a NIOSH Benzene Criteria Document. The adjustment normalizes all results to a specific gravity of 1.024 by multiply...
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| Published in: | American Industrial Hygiene Association journal Vol. 43; no. 11; p. 863 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
United States
01-11-1982
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| Subjects: | |
| Online Access: | Get more information |
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| Summary: | Analysis of urine samples for compounds such as lead, phenol, or 4,4'-methylene bis (2-chloroaniline) (MBOCA) are often adjusted for specific gravity following a recommendation in a NIOSH Benzene Criteria Document. The adjustment normalizes all results to a specific gravity of 1.024 by multiplying the analytical result in microgram/liter by 24/G where G is the last 2 digits of the specific gravity of the urine sample. The adjustment calculation is based on a suggestion by Levine and Fahy, who found that the urine solids content is roughly proportional to 24/G. We believe this adjustment to be inappropriate based on the following considerations. |
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| ISSN: | 0002-8894 |
| DOI: | 10.1080/15298668291410701 |