Aug 1, 1977

Cotton dust sampling, III-estimation of statistical errors with vertical elutriators

American Industrial Hygiene Association Journal
M W Suh, J D Neefus


Cotton dust levels measured by vertical elutriators have been studied in terms of the variance components associated with statistical errors due to sampling equipment, location, time and repeated sampling. A thumb-rule is proposed for estimating sampling errors of three-hour vertical elutriator samples as a function of average dust level. Relative efficiency of three-hour samples is shown to be superior to that of six-hour samples at moderate dust levels (0.4-0.6 mg/m3) but inferior at low dust levels (0.1-0.2 mg/m3. Errors due to location and equipment are found insignificant from this particular study.

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Mentioned in this Paper

Air Pollutants, Environmental
Air Pollutants, Occupational
Textile Industry
House Dust
Occupational Medicine Field

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