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2. Respirator fit test - Wikipedia

   en.wikipedia.org/wiki/Respirator_fit_test

   However the newer OSHA Fast Fit Protocols for CNC methods, and introduction of newer instruments, have made all quantitative fit test devices equivalent in price and time required for testing. The CNP method has at present about 15% of the fit test market in industry. [25] The Current CNC instruments are the PortaCount 8040 and the AccuFIT 9000.

3. NIOSH air filtration rating - Wikipedia

   en.wikipedia.org/wiki/NIOSH_air_filtration_rating

   NIOSH air filtration ratings do not test the fit of a respirator. Fit testing is required by OSHA for employers when a hazard is present, and voluntary respirator use under Appendix D is not allowed due to the hazard. [31] Rules for fit testing are also defined by ANSI Z88.2. Z88.2 notes that, in Canada, respirator care and fit testing are ...

4. Hearing protection fit-testing - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_fit-testing

   Fit testing (MIRE) [1] Hearing protector fit-testing is a method that measures the degree of noise reduction obtained from an individual wearing a particular hearing protection device (HPD) - for example, a noise canceling earplug or earmuff. Fit testing is necessary because noise attenuation varies across individuals.

5. Respirator - Wikipedia

   en.wikipedia.org/wiki/Respirator

   A study found that 80–100% of subjects failed an OSHA-accepted qualitative fit test, and a quantitative test showed between 12 and 25% leakage. [ 46 ] A CDC study found that in public indoor settings, consistently wearing a respirator was linked to a 83% lower risk of testing positive for COVID-19, as compared to a 66% reduction when using ...

6. Nationally Recognized Testing Laboratory - Wikipedia

   en.wikipedia.org/wiki/Nationally_Recognized...

   The United States Occupational Safety and Health Administration (OSHA) requires that 38 different types of products, devices, assemblies, or systems used in the workplace be "approved" (i.e., tested and certified) by third-party organizations identified as Nationally Recognized Testing Laboratories (NRTLs). As part of OSHA's NRTL Program, the ...

7. N95 respirator - Wikipedia

   en.wikipedia.org/wiki/N95_respirator

   A study found that 80–100% of subjects failed an OSHA-accepted qualitative fit test, and a quantitative test showed between 12 and 25% leakage. [ 63 ] A CDC study found that in public indoor settings, consistently wearing a respirator was linked to a 83% lower risk of testing positive for COVID-19, as compared to a 66% reduction when using ...

8. Fault tree analysis - Wikipedia

   en.wikipedia.org/wiki/Fault_tree_analysis

   A fault tree diagram. Fault tree analysis (FTA) is a type of failure analysis in which an undesired state of a system is examined. This analysis method is mainly used in safety engineering and reliability engineering to understand how systems can fail, to identify the best ways to reduce risk and to determine (or get a feeling for) event rates of a safety accident or a particular system level ...

9. Process hazard analysis - Wikipedia

   en.wikipedia.org/wiki/Process_Hazard_Analysis

   It is one of the elements of OSHA's program for Process Safety Management. There are several methodologies that can be used to conduct a PHA, including checklists , hazard identification (HAZID) reviews, what-if reviews and SWIFT , hazard and operability studies (HAZOP), failure mode and effect analysis (FMEA), etc. PHA methods are qualitative ...