Page:NIOSH DM DFM respirator evaluation draft.pdf/67
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WORKING DRAFT 9.15.92—Performance Evaluation of DM and DFM Filter Respirators
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Table O—Statistical Analysis of Control Failure Rates for Some Published and Unpublished WPF Studies for Non-Powered, Air-Purifying Halfmasks.
| Study | Biased Control Failure Rate per 100 Wearers for APF of 10 (Note A) |
Biased UCL on Actual Failure Rate per 100 Wearers (Note B) |
Fit Test Used | NIOSH-Type Deep Probe Used? (Note C) |
Lung-Retention Correction? (Note D) |
Authors |
| 1 | 5.0 | 8.9 | Irritant smoke | Example | Example | Example |
| 2 | 4.7 | 12.7 | QNFT, FF > 100 |
Example | Example | Example |
| 3 | 4.8 4.2 2.1 2.0 0.2 |
14.2 12.1 8.5 7.2 2.3 |
Saccharin | Example | Example | Example |
| 4 | 2.0 | 6.3 | QNFT, FF > 250 |
Example | Example | Example |
| 5 | 0.9 0.7 |
2.8 1.9 |
Saccharin | Example | Example | Example |
| 6 | 0.7 | 3.2 | Saccharin | Example | Example | Example |
| 7 | 0.6 0.1 0.04 |
4.1 1.7 0.9 |
Saccharin | Example | Example | Example |
| 8 | 0.5 0.1 0.02 0.01 |
4.4 2.0 1.2 0.8 |
Saccharin | Example | Example | Example |
| 9 | 0 | 0 | Isoamyl acetate |
Example | Example | Example |
