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  2. Permissible exposure limit - Wikipedia

    en.wikipedia.org/wiki/Permissible_exposure_limit

    The permissible exposure limit (PEL or OSHA PEL) is a legal limit in the United States for exposure of an employee to a chemical substance or physical agent such as high level noise. Permissible exposure limits were established by the Occupational Safety and Health Administration (OSHA). Most of OSHA's PELs were issued shortly after adoption of ...

  3. Disinfectant - Wikipedia

    en.wikipedia.org/wiki/Disinfectant

    The vapor is hazardous to the respiratory system and eyes and consequently the OSHA permissible exposure limit is 1 ppm (29 CFR 1910.1000 Table Z-1) calculated as an eight-hour time weighted average and the NIOSH immediately dangerous to life and health limit is 75 ppm. [30]

  4. Hydrogen peroxide - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_peroxide

    The U.S. Occupational Safety and Health Administration (OSHA) has established a permissible exposure limit of 1.0 ppm calculated as an 8-hour time-weighted average (29 CFR 1910.1000, Table Z-1). [97] Hydrogen peroxide has been classified by the American Conference of Governmental Industrial Hygienists (ACGIH) as a "known animal carcinogen, with ...

  5. 5-Methylchrysene - Wikipedia

    en.wikipedia.org/wiki/5-Methylchrysene

    It has an OSHA Permissible Exposure Limit (=PEL)over an 8 hours Time Weighted Average (= TWA) of 0.2 mg/m 3. This is also the Threshold Limit Values (TLV). NIOSH recommends recommends an 10 Hours Time-Weighted Average (= TWA) Exposure Limit (= EL) of 0.1 mg/m 3. NIOSH considers coal tar pitch volatiles to be potential occupational carcinogens.

  6. List of highly toxic gases - Wikipedia

    en.wikipedia.org/wiki/List_of_highly_toxic_gases

    Many gases have toxic properties, which are often assessed using the LC 50 (median lethal concentration) measure. In the United States, many of these gases have been assigned an NFPA 704 health rating of 4 (may be fatal) or 3 (may cause serious or permanent injury), and/or exposure limits (TLV, TWA/PEL, STEL, or REL) determined by the ACGIH professional association.

  7. Isocyanate - Wikipedia

    en.wikipedia.org/wiki/Isocyanate

    OSHA puts forth permissible exposure limit (PEL) 20 ppb for MDI and detailed technical guidance on exposure assessment. [ 52 ] The National Institutes of Health ( NIOSH ) is the agency responsible for providing the research and recommendations regarding workplace safety, while OSHA is more of an enforcement body.

  8. Title 29 of the Code of Federal Regulations - Wikipedia

    en.wikipedia.org/wiki/Title_29_of_the_Code_of...

    Volume Chapter Parts Regulatory Entity 1: 0-99: Subtitle A--Office of the Secretary of Labor 2: I: 100-199: National Labor Relations Board: II: 200-299: Office of Labor-Management Standards, Department of Labor

  9. Engineering controls - Wikipedia

    en.wikipedia.org/wiki/Engineering_controls

    The OSHA permissible exposure limit (PEL) is 90 dBA as an 8 hr-TWA, using a 5 dBA exchange rate. [22] The exchange rate means that when the noise level is increased by either 3 dBA (according to the NIOSH REL) or 5 dBA (according to the OSHA PEL), the amount of time a person can be exposed to a certain noise level to receive the same dose is ...

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