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  2. 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 ...

  3. Powered air-purifying respirator - Wikipedia

    en.wikipedia.org/wiki/Powered_air-purifying...

    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. [10]

  4. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    A comparison table below that details the NIOSH protection designations, [45] 42 CFR 84, [25] the Navy/Marine Field Manual, [47] the NIOSH TB guide, [29] and whether they match up with the (42 CFR 84-declared ANSI K13.1-1973 revision) ANSI Z88.7-2001 colors, [46] for each type of chemical cartridge is described below.

  5. ANSI Z35 - Wikipedia

    en.wikipedia.org/wiki/ANSI_Z35

    ANSI Z35.1 the Specifications for Accident Prevention Signs, [c] was an American standard that dictated the layout, colors and wording of safety signs in the United States. The standard is the first American standard that made specific demands for the design, construction, and placement of safety signage in industrial environments.

  6. Floor marking tape - Wikipedia

    en.wikipedia.org/wiki/Floor_marking_tape

    OSHA does not have a specific standard for floor marking regarding color or design. However other rules and policy interpretations has provided some guidelines. 1910.176(a) and 1910.22(b)(2), requires when mechanical handling equipment, such as forklifts and Powered industrial trucks are used, that permanent aisles and passageways must be marked.

  7. Chemical cartridge - Wikipedia

    en.wikipedia.org/wiki/Chemical_cartridge

    Under 42 CFR 84, chemical cartridges and gas mask canisters are defined separately. Use of the TC-14G canister schedule or the TC-23C chemical cartridge schedule for a given respirator depends on whether "acid gas" is a designated contaminant, which is designated for gas mask canisters only, or if the manufacturer is obligated to list all ...

  8. United States vehicle emission standards - Wikipedia

    en.wikipedia.org/wiki/United_States_vehicle...

    In the United States, the emission standards for non-road diesel engines are published in the US Code of Federal Regulations, Title 40, Part 89 (40 CFR Part 89). Tier 1–3 Standards were adopted in 1994 and was phased in between 1996 and 2000 for engines over 37 kW (50 hp). In 1998 the regulation included engines under 37 kW and introduced ...

  9. Standard temperature and pressure - Wikipedia

    en.wikipedia.org/wiki/Standard_temperature_and...

    In chemistry, IUPAC changed its definition of standard temperature and pressure in 1982: [1] [2] Until 1982, STP was defined as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of exactly 1 atm (101.325 kPa).

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