File:Workplace Protection Factors of full face masks.jpg
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Summary
| Description |
Русский: Коэффициенты защиты респираторов - трёх сертифицированных в Великобритании полнолицевых масок с противоаэрозольными фильтрами высокой эффективности. Выявленные случаи просачивания большого количества неотфильтрованного воздуха через зазоры между маской и лицом стали основанием для более жёсткого ограничения области допустимого применения СИЗОД этого типа - ограничение снизили с 900 ПДКрз до 40 ПДКрз (Великобритания).
Использованы значения коэффициентов защиты из: The Annals of Occupational Hygiene (1990) Vol. 34(6) pp. 541–552. doi:10.1093/annhyg/34.6.547
English: Results of respirator Workplace Protection Factors (WPF) measurement. Workers used three approved HSE negative pressure full face masks. Minimal values of WPF for each models were 11, 17 and 26. These results are made strictly limit the scope of permissible use of such respirators - from 900 to 40 OEL (in BS 4275-1997).
Source: The Annals of Occupational Hygiene (1990) Vol. 34(6) pp. 541–552. doi:10.1093/annhyg/34.6.547 |
| Date | |
| Source | Own work |
| Author | AlexChirkin |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 15:33, 17 June 2016 | | 2,028 × 1,228 (319 KB) | AlexChirkin | User created page with UploadWizard |
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