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  2. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    The following table lists the air flow requirements for NIOSH-approved PAPRs under Part 84.175. Tight-fitting PAPRs may be fit tested with the facepiece unpowered and in negative-pressure (under 29 CFR 1910.134) while loose-fitting PAPR fit test protocols have not been changed from 30 CFR 11. [40]

  3. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    An open-circuit SCBA does not recirculate air; it instead allows respired air to be exhausted outside. While 30 CFR 11 does not restrict the gas that can be used (although compressed air is usually chosen), use of compressed oxygen is not allowed due to the system's exposure to outside air. Duration is usually limited to 30-60 minutes. [13]

  4. Occupational Safety and Health Act (United States) - Wikipedia

    en.wikipedia.org/wiki/Occupational_Safety_and...

    Long title: An Act to assure safe and healthful working conditions for working men and women; by authorizing enforcement of the standards developed under the Act; by assisting and encouraging the States in their efforts to assure safe and healthful working conditions; by providing for research, information, education, and training in the field of occupational safety and health; and for other ...

  5. Occupational Safety and Health Administration - Wikipedia

    en.wikipedia.org/wiki/Occupational_Safety_and...

    The OSH Act covers most private sector employers in all 50 states, the District of Columbia, and other U.S. jurisdictions—either directly through federal OSHA or through an OSHA-approved state plan. State plans are OSHA-approved job safety and health programs operated by individual states instead of federal OSHA.

  6. Gas cylinder - Wikipedia

    en.wikipedia.org/wiki/Gas_cylinder

    ISO 15500-5: Road vehicles — Compressed natural gas (CNG) fuel system components — Part 5: Manual cylinder valve [29] [30] US DOT CFR Title 49, part 178, Subpart C — Specification for Cylinders [ 31 ]

  7. U.N. body accuses Israel of destroying Gaza healthcare - AOL

    www.aol.com/news/u-n-body-issues-damning...

    The 23-page report, documenting various attacks between Oct. 12, 2023, and June 30, 2024, concluded that since the Hamas attacks against Israel on Oct. 7, 2023, the conduct of hostilities in Gaza ...

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