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HandWiki. Respirator Assigned Protection Factors. Encyclopedia. Available online: https://encyclopedia.pub/entry/31238 (accessed on 23 September 2026).
HandWiki. Respirator Assigned Protection Factors. Encyclopedia. Available at: https://encyclopedia.pub/entry/31238. Accessed September 23, 2026.
HandWiki. "Respirator Assigned Protection Factors" Encyclopedia, https://encyclopedia.pub/entry/31238 (accessed September 23, 2026).
HandWiki. (2022, October 25). Respirator Assigned Protection Factors. In Encyclopedia. https://encyclopedia.pub/entry/31238
HandWiki. "Respirator Assigned Protection Factors." Encyclopedia. Web. 25 October, 2022.
Respirator Assigned Protection Factors
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The respiratory protective devices (RPD) can protect workers only if their protective properties are adequate to the conditions in the workplace. Therefore, specialists have developed criteria for the selection of proper, adequate respirators, including the Assigned Protection Factors (APF) - the decrease of the concentration of harmful substances in the inhaled air, which (is expected) to be provided with timely and proper use of a certified respirator of certain types (design) by taught and trained workers (after individual selection with a tight-fitting mask and fit testing), when the employer performs an effective respiratory protective device programme.

protective device protective devices protective properties

References

  1. Technical Committee PH/4, Respiratory protection, ed (1997). "4 Overall protective programme" (in en). British Standard BS 4275:1997 "Guide to implementing an effective respiratory protective device programme" (3 ed.). 389 Chiswick High Road, London: British Standards Institution. p. 3. ISBN 0-580-28915 X. 
  2. European Committee for Standardization (2005). "6 Verfahren zur Gefährdungsbeurteilung". in Technischen Komitee CEN/TC 79 "Respiratory protective devices" (in de). DIN EN 529:2006 "Atemschutzgeräte - Empfehlungen für Auswahl, Einsatz, Pflege und Instandhaltung - Leitfaden" (Deutsche Fassung EN 529:2005 ed.). Brüssel, rue de Stassart, 36: Deutsche Gremium ist NA 027-02-04 AA «Atemgeräte für Arbeit und Rettung» im Normenausschuss Feinmechanik und Optik (NAFuO). p. 50. 
  3. Griffin, G. and D.J. Longson (1970). "The Hasard Due Inward Leakage of Gas into a Full Face Mask" (in en). The Annals of Occupational Hygiene 13 (2): 147–151. doi:10.1093/annhyg/13.2.147. ISSN 0003-4878. PMID 5431896. http://annhyg.oxfordjournals.org/content/13/2.toc. 
  4. Hounam, R. F., D. J. Morgan, D. T. O'Connor and R. J. Sherwood (1964). "The Evaluation of Protection Provided by Respirators" (in en). The Annals of Occupational Hygiene 7 (4): 353–363. doi:10.1093/annhyg/7.4.353. ISSN 0003-4878. PMID 14266238. http://annhyg.oxfordjournals.org/content/7/4.toc. 
  5. Gorodinski, Semyon (1979). "Chapter 4. Methods for PPE performance measurement" (in ru). Personal protective equipment from radioactive substances (3rd edition, updated and expanded ed.). Moscow: The state Committee of the USSR Council of Ministers on the use of atomic energy, "Атомиздат" publ.. pp. 106–112. 
  6. Burgess, William, Leslie Silverman S.D. & Felix Stein S.B. (1961). "A New Technique for Evaluating Respirator Performance" (in en). American Industrial Hygiene Association Journal 22 (6): 422–429. doi:10.1080/00028896109343432. ISSN 0002-8894. PMID 13874833. http://www.tandfonline.com/toc/aiha20/22/6. 
  7. Bureau of Mines (1965) (in en). Respiratory Protective Devices - Tests for Permissibility; Fees: Schedule 21B, Filter-Type Dust, Fume, and Mist Respirators. Code of Federal Regulations Ref. 30 CFR Part 14, Jan. 19, 1965; amended March 23, 1965, and June 12, 1969.. 
  8. Hyatt, E. C., J. A. Pritchard & C.P. Richards (1972). "Respirator Efficiency Measurement Using Quantitative DOP Man Tests" (in en). American Industrial Hygiene Association Journal 33 (10): 635–643. doi:10.1080/0002889728506721. ISSN 0002-8894. PMID 4512979. http://www.tandfonline.com/toc/aiha20/33/10. 
  9. Lee, Shu-An, Sergey Grinshpun (2005). "Laboratory and Field Evaluation of a New Personal Sampling System for Assessing the Protection Provided by the N95 Filtering Facepiece Respirators against Particles" (in en). The Annals of Occupational Hygiene 49 (3): 245–257. doi:10.1093/annhyg/meh097. ISSN 0003-4878. PMID 15668259.  https://dx.doi.org/10.1093%2Fannhyg%2Fmeh097
  10. Zhuang, Ziqing; Christopher C. Coffey; Paul A. Jensen; Donald L. Campbell; Robert B. Lawrence; Warren R. Myers (2003). "Correlation Between Quantitative Fit Factors and Workplace Protection Factors Measured in Actual Workplace Environments at a Steel Foundry" (in en). American Industrial Hygiene Association Journal 64 (6): 730–738. doi:10.1080/15428110308984867. ISSN 1542-8117. http://www.tandfonline.com/toc/uaih20/64/6. 
  11. Cralley, Lewis et al. (1985) (in en). Patty's Industrial Hygiene and Toxicology. 3A (2 ed.). London: Willey-Interscience. pp. 677–678. ISBN 0 471-86137-5. 
  12. Kirillov, Vladimir (2014). "Overview of Industrial Testing Outcome of Respiratory Organs Personal Protection Equipment" (in English, Russian). Toxicological Review 6 (129): 44–49. doi:10.17686/sced_rusnauka_2014-1034. ISSN 0869-7922. http://en.toxreview.ru/magazine/?c4a=20140600. 
  13. Hack, Alan; Fairchild, Chack; Scaggs, Barbara (1982). "the forum..." (in en). American Industrial Hygiene Association Journal 43 (12): A14. ISSN 1542-8117.  http://www.worldcat.org/issn/1542-8117
  14. Dupraz, Carol (1983). "The Forum" (in en). American Industrial Hygiene Association Journal 44 (3): B24–B25. ISSN 1542-8117.  http://www.worldcat.org/issn/1542-8117
  15. Myers, Warren; Lenhart, Steven; Campbell, Donald; Provost, Glendel (1983). "The Forum" (in en). American Industrial Hygiene Association Journal 44 (3): B25–B26. ISSN 1542-8117.  http://www.worldcat.org/issn/1542-8117
  16. Guy, Harry (1985). "Respirator Performance Terminology)" (in en). American Industrial Hygiene Association Journal 46 (5): В22, B24. ISSN 1542-8117.  http://www.worldcat.org/issn/1542-8117
  17. Bollinger, Nancy; Campbell, Donald; Coffey, Christopher (2004). "III. Respirator Selection Logic Sequence" (in en). NIOSH Respirator Selection Logic. DHHS (NIOSH) Publication No. 2005-100. NIOSH Respirator Policy Group; Heinz Ahlers, Roland BerryAnn, Frank Hearl, Richard Metzler, Teresa Seitz, Douglas Trout and Ralph Zumwalde. Cincinnati, OH: The National Institute for Occupational Safety and Health (NIOSH). p. 39. https://www.cdc.gov/niosh/docs/2005-100/. 
  18. Dupraz, Carol (1986). "Letter to the Editor" (in en). American Industrial Hygiene Association Journal 47 (1): A12. ISSN 1542-8117.  http://www.worldcat.org/issn/1542-8117
  19. Lenhart, Steeven; Donald L. Campbell (1984). "Assigned protection factors for two respirators types based upon workplace performance testing" (in en). The Annals of Occupational Hygiene 28 (2): 173–182. doi:10.1093/annhyg/28.2.173. ISSN 1475-3162. http://annhyg.oxfordjournals.org/content/28/2/. 
  20. Nelson, Thomas (1996). "The Assigned Protection Factor According to ANSI" (in en). American Industrial Hygiene Association Journal 57 (8): 735–740. doi:10.1080/15428119691014594. ISSN 1542-8117. PMID 8765202. http://www.tandfonline.com/toc/aiha20/57/8. 
  21. Federal Register vol. 68, No 109 / Friday, June 6, 2003 pp. 34036-34119 Assigned Protection Factors https://www.osha.gov/FedReg_osha_pdf/FED20030606.pdf
  22. OSHA standard 29 CFR 1910.134 "Respiratory Protection" http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=12716
  23. Myers, Warren; M.J. Peach; K. Cutright; W. Iskander (1984). "Workplace Protection Factor Measurements on Powered Air-Purifying Respirators at a Secondary Lead Smelter: Results and Discussion" (in en). American Industrial Hygiene Association Journal 45 (10): 681–688. doi:10.1080/15298668491400449. ISSN 1542-8117. PMID 6496315.  https://dx.doi.org/10.1080%2F15298668491400449
  24. Myers, Warren; Michael J. Peach III; K. Cutright; W. Iskander (1986). "Field Test of Powered Air-Purifying Respirators at a Battery Manufacturing Facility" (in en). Journal of the International Society for Respiratory Protection 4 (1): 62–89. ISSN 0892-6298. http://www.isrp.com. 
  25. Cecala, Andrew B.; Volkwein, Jon C.; Thomas, Edward D.; Charles W. Urban (1981) (in en). Protection Factors of the Airstream Helmet. Bureau of Mines Report No. 8591. p. 10. 
  26. Tannahill, S.N.; R.J. Willey; M.H. Jackson (1990). "Workplace Protection Factors of HSE Approved Negative Pressure Full-Facepiece Dust Respirators During Asbestos Stripping: Preliminary Findings" (in en). The Annals of Occupational Hygiene 34 (6): 541–552. doi:10.1093/annhyg/34.6.547. ISSN 1475-3162. http://annhyg.oxfordjournals.org/content/34/6/. 
  27. Hyatt, E.C. (1976) (in en). Respirator Protection Factors. Report No. LA-6084-MS. Los Alamos: Los Alamos Scientific Laboratory. 
  28. "Critical Issues Conference On In-Facepiece Sampling" (in en). Journal of the International Society for Respiratory Protection 6 (1): 25. 1988. ISSN 0892-6298. http://www.isrp.com. 
  29. IS 9623:2008 Recommendations for the selection, use and maintenance of respiratory protective devices https://upload.wikimedia.org/wikipedia/commons/3/38/%D0%93%D0%9E%D0%A1%D0%A2_%D0%98%D0%BD%D0%B4%D0%B8%D0%B8_%D0%92%D1%8B%D0%B1%D0%BE%D1%80_%D0%B8_%D0%BE%D1%80%D0%B3%D0%B0%D0%BD%D0%B8%D0%B7%D0%B0%D1%86%D0%B8%D1%8F_%D0%BF%D1%80%D0%B8%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F_%D0%A1%D0%98%D0%97%D0%9E%D0%94_is.9623.2008.pdf
  30. Ukrainian state standard (national version EN 529) ДСТУ EN 529:2006. Засоби індивідуального захисту органів дихання. Рекомендації щодо вибору, використання, догляду і обслуговування. Настанова (EN 529:2005, IDT) (Respiratory protective devices. Recommendations for selection, use and maintenance. - in Ukrainian).
  31. RF state standard ГОСТ Р 12.4.279-2012 СИЗОД. Рекомендации по выбору, применению и техническому обслуживанию. (RPD selection, use and maintenance - in Russian) had no one APF value et all; but the authors of this document (which has been developed by RPD manufacturer and seller - corporation "ROSKHIMZASCHITA" / "Russian Chemical Protection" ), declare the document as a "national version of the EU standard EN 529". And this standard is non-mandatory for employers. http://protect.gost.ru/document.aspx?control=7&id=183450
  32. "1910.134(d)(3)(i)(A) Assigned Protection Factors (APFs)" (in en). OSHA Standard: 29 Code of Federal Register 1910.134 "Respiratory Protection". Personal Protective Equipment. Occupational Safety and Health Administration (OSHA). 2011. https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=12716. Retrieved 4 June 2018. 
  33. BSI PH/4 Committee (2005). "Appendix C. Protection Factors." (in en). BS EN 529:2005 Respiratory protective devices. Recommendations for selection, use, care and maintenance. Guidance document. London: British Standards Institution (BSI). ISBN 978-0-580-46908-4. https://shop.bsigroup.com/ProductDetail?pid=000000000030100880. 
  34. Joint Technical Committee SF-010, Occupational Respiratory Protection (2009). "Section 4. Selection of RPE" (in en). Australian/New Zealand Standard AS/NZS 1715:2009 Selection, use and maintenance of respiratory protective equipment (5 ed.). Sydney (Australia) - Wellington (New Zealand): Standards Australia. p. 28. ISBN 978-0-7337-9000-3. 
  35. Canadian Standards Association (2011) (in en). CAN/CSA-Z94.4-11 Selection, use, and care of respirators (4 ed.). Mississauga (Ontario, Canada). https://www.scc.ca/en/standardsdb/standards/26100. 
  36. National Personal Protective Equipment Standardization Technical Committee, 3M China Ltd. (2002). Yao, Hong (姚红); She, Qiyuan (佘启元); Ding, Songtao (丁松涛) et al.. eds (in zh). p. 6. 
  37. Japanese Standards Association (2006). "Appendix 1. RPD selection" (in ja). Tokyo: JSA. p. 14. http://kikakurui.com. Retrieved 3 June 2018. 
  38. Korea Occupational Safety and Health Agency (KOSHA) (2012) (in ko). Ulsan: Korea Occupational Safety and Health Agency. p. 21. 
  39. CEN/TC 79 - Atemschutzgeräte (2005). "Protection Factors [Anhang C. Schutzfactoren. C.2 Gebrauch von Schutzfaktoren]" (in de). DIN EN 529:2006-01 Selection, use and maintenance of respiratory protective devices [Atemschutzgeräte - Empfehlungen für Auswahl, Einsatz, Pflege und Instandhaltung - Leitfaden]. Leitfaden: Gremium NA 027-02-04 AA “Atemgeräte für Arbeit und Rettung”. pp. 35–36. 
  40. Wallis G., Menke R., Chelton C. (1993). AIHA & ACGIH. ed. "Workplace field testing of a disposable negative pressure half-mask dust respirator (3M 8710)" (in en). American Industrial Hygiene Association Journal 54 (10): 576–583. doi:10.1080/15298669391355080.  https://dx.doi.org/10.1080%2F15298669391355080
  41. Myers W.R., Z. Zhuang, T. Nelson (1996). AIHA & ACGIH. ed. "Field Performance Measurements of Half-Facepiece Respirators—Foundry Operations" (in en). American Industrial Hygiene Association Journal 57 (2): 166–174. doi:10.1080/15428119691015106. PMID 8615325.  https://dx.doi.org/10.1080%2F15428119691015106
  42. Tannahill S.N., R.J. Willey and M.H. Jackson (1990). The British Occupational Hygiene Society. ed. "Workplace Protection Factors of HSE Approved Negative Pressure Full-Facepiece Dust Respirators During Asbestos Stripping: Preliminary Findings" (in en). The Annals of Occupational Hygiene 34 (6): 541–552. doi:10.1093/annhyg/34.6.547. PMID 2291579. http://annhyg.oxfordjournals.org/content/34/6/. 
  43. Myers W.R., M.J. Peach III (1983). The British Occupational Hygiene Society. ed. "Performance measurements on a powered air-purifying respirator made during actual field use in a silica bagging operation" (in en). The Annals of Occupational Hygiene 27 (3): 251–259. doi:10.1093/annhyg/27.3.251. PMID 6314865. http://annhyg.oxfordjournals.org/content/27/3/. 
  44. Howie R.M., Johnstone J.B.G., Weston P., Aitken R.J. and Groat S. (1996). "Tables". Workplace effectiveness of respiratory protective equipment for asbestos removal work. HSE Contract research report No. 112/1996 (Institute of Occupational Medicine ed.). Edinburgh: Crown. pp. 73, 75, 77. ISBN 978-0-7176-1201-7. http://www.hse.gov.uk/research/crr_pdf/1996/crr96112.pdf. 
  45. Myers W. R., Michael J. Peach III, K. Cutright and W. Iskander (1986). International Society for Respiratory Protection. ed. "Field Test of Powered Air-Purifying Respirators at a Battery Manufacturing Facility" (in en). Journal of the International Society for Respiratory Protection 4 (1): 62–89. ISSN 0892-6298.  http://www.worldcat.org/issn/0892-6298
  46. Nancy J. Bollinger, Robert H. Schutz, ed (1987) (in en). NIOSH Guide to Industrial Respiratory Protection. DHHS (NIOSH) Publication No 87-116. Cincinnati, Ohio: National Institute for Occupational Safety and Health. p. 305. doi:10.26616/NIOSHPUB87116. https://www.cdc.gov/niosh/docs/87-116/. 
  47. Michael E. Barsan (Technical Editor), ed (2007) (in en). NIOSH Pocket guide to chemical hazards. DHHS (NIOSH) Publication No. 2005-149 (3 ed.). Cincinnati, Ohio: National Institute for Occupational Safety and Health. p. 454. doi:10.26616/NIOSHPUB87108. https://www.cdc.gov/niosh/docs/87-108/. . New on-line version on NIOSH site (more detailed version).
  48. ISO 17420 Respiratory protective devices. Performance requirements.
  49. ISO/TS 16975-1 Respiratory protective devices. Selection, use and maintenance. Part 1: Establishing and implementing a respiratory protective device programme
  50. ISO/TS 16975-2:2016 Respiratory protective devices. Selection, use and maintenance. Part 2: Condensed guidance to establishing and implementing a respiratory protective device programme
  51. Clayton, Mike (2014) (in en). Validation of ISO Protection Levels: Initial Steps. (presentation on 17-th ISRP Biennial Conference). Prague. http://www.isrp.com. 
  52. TIL, Total Inward Leakage (of air pollution from breathing zone to in-mask cavity) - the sum of its leakage through gaps betwing RPD mask and the face; and penetration through the air-purifying element.
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