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  2. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    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 defined by CSA Z94.4.

  3. Respirator assigned protection factors - Wikipedia

    en.wikipedia.org/wiki/Respirator_Assigned...

    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 ...

  4. Two-in, two-out - Wikipedia

    en.wikipedia.org/wiki/Two-in,_two-out

    In firefighting, the policy of two-in, two-out refers to United States Occupational Safety and Health Administration (OSHA) policy 29 CFR 1910.134(g)(4)(i). [1] The respiratory protection standard requires that workers engaged in fighting interior structural fires work in a buddy system; at least two workers must enter the building together, so that they can monitor each other's whereabouts as ...

  5. Respirator - Wikipedia

    en.wikipedia.org/wiki/Respirator

    OSHA encourages the use of respirators, even if only voluntarily. OSHA advises voluntary respirator users receive a copy of 1910.134 Appendix D, as well as verify that the respirator used, be it powered-air purifying, self-contained, or facepiece-filtering, is not a potential health hazard. [158]

  6. Respirator fit test - Wikipedia

    en.wikipedia.org/wiki/Respirator_fit_test

    Qualitative and quantitative fit test methods (QLFT & QNFT) exist. Detailed descriptions are given in the US standard, developed by Occupational Safety and Health Administration OSHA. [15] This standard regulates respirator selection and organization (Appendix A describes fit testing). Compliance with this standard is mandatory for US employers.

  7. Murders of Andrew Bagby and Zachary Turner - Wikipedia

    en.wikipedia.org/wiki/Murders_of_Andrew_Bagby...

    Volume I Archived 24 July 2020 at the Wayback Machine; Volume II Archived 29 May 2015 at the Wayback Machine; Volume III (Table of contents Archived 4 August 2016 at the Wayback Machine, Appendix A Archived 5 August 2016 at the Wayback Machine, Appendix B Archived 5 August 2016 at the Wayback Machine). St. John's, NL: Office of the Child and ...

  8. Christian forces of the First Crusade - Wikipedia

    en.wikipedia.org/wiki/Christian_forces_of_the...

    The following is an overview of the armies of First Crusade, including the armies of the European noblemen of the "Princes' Crusade", the Byzantine army, a number of Independent crusaders as well as the People's Crusade and the subsequent Crusade of 1101 and other European campaigns prior to the Second Crusade beginning in 1147.

  9. Pericles's Funeral Oration - Wikipedia

    en.wikipedia.org/wiki/Pericles's_Funeral_Oration

    Pericles begins by praising the dead, as the other Athenian funeral orations do, by regard for the ancestors of present-day Athenians (2.36.1 – 2.36.3), touching briefly on the acquisition of the empire.

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