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  2. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    A comparison table below that details the NIOSH protection designations, 42 CFR 84, the Navy/Marine Field Manual, [27] the NIOSH TB guide, [19] and whether they match up with the (42 CFR 84-declared ANSI K13.1-1973 revision) ANSI Z88.7-2001 colors, for each type of chemical cartridge is described below.

  3. Sunscreen - Wikipedia

    en.wikipedia.org/wiki/Sunscreen

    Water-resistant sunscreens were introduced in 1977, [20] and recent development efforts have focused on overcoming later concerns by making sunscreen protection both longer-lasting and broader-spectrum (protection from both UVA & UVB rays), more environmentally friendly, [31] more appealing to use [24] and addressing the safety concerns of ...

  4. Chemical protective clothing - Wikipedia

    en.wikipedia.org/wiki/Chemical_protective_clothing

    The level of protection needed and the hazards that are associated with the chemical will play a major role in what pieces of the ensemble are needed to fully protect the worker. When purchasing Chemical Protective Clothing, careful consideration should be taken to make sure that all pieces of the ensemble are compatible with each other.

  5. Mayo Clinic - Wikipedia

    en.wikipedia.org/wiki/Mayo_Clinic

    Mayo Clinic is a nonprofit hospital system with campuses in Rochester, Minnesota; Scottsdale and Phoenix, Arizona; and Jacksonville, Florida. [22] [23] Mayo Clinic employs 76,000 people, including more than 7,300 physicians and clinical residents and over 66,000 allied health staff, as of 2022. [5]

  6. Passivation (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Passivation_(chemistry)

    In physical chemistry and engineering, passivation is coating a material so that it becomes "passive", that is, less readily affected or corroded by the environment. . Passivation involves creation of an outer layer of shield material that is applied as a microcoating, created by chemical reaction with the base material, or allowed to build by spontaneous oxidation

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