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An Analytical Method for Respirator Performance Prediction Utilizing the Quantitative Fit Test (QNFT).

Authors
Williams-FT
Source
NIOSH 1980 Sep:489-505
Link
NIOSHTIC No.
00123921
Abstract
An analytical method for evaluating the magnitude of the safety factor in respirator performance is presented. The method utilizes a Quantitative Fit Test to measure a Fit Factor which is representative of the ratio of breathing to fit leakage flow rates. Equivalence equations for concentration and leakage measurements are derived and the dependence of these equivalence relationships on filtration efficiency, breathing, resistance, and variability of fit are examined.
Keywords
Analytical-methods; Respiratory-protective-equipment; Respiratory-protection; Safety-equipment; Mechanical-properties;
Publication Date
19800901
Fiscal Year
1980
NTIS Accession No.
NTIS Price
NIOSH Division
DSR;
Source Name
Papers from the NIOSH International Respirator Research Workshop, September 9-11, 1980, Division of Safety Research, NIOSH, Morgantown, WV
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