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  2. Threshold limit value - Wikipedia

    en.wikipedia.org/wiki/Threshold_limit_value

    Threshold limit value − time-weighted average (TLV-TWA): The average exposure on the basis of a 8 hours per day, 40 hours per week work schedule. Threshold limit value − short-term exposure limit (TLV-STEL): A 15-minute TWA exposure that should not be exceeded at any time during a workday, even if the 8-hour TWA is within the TLV-TWA.

  3. 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 ...

  4. Occupational dust exposure - Wikipedia

    en.wikipedia.org/wiki/Occupational_dust_exposure

    To control an airborne dust, the workplace must first monitor the air for exposures. Typically, concentration of air contaminants is measured and compared to set exposure limits. In the United States, these often follow personal exposure limits (PEL) set by OSHA , or threshold limit values (TLV) set by ACGIH.

  5. Occupational exposure limit - Wikipedia

    en.wikipedia.org/wiki/Occupational_exposure_limit

    Recommended exposure limit, set by the U.S. National Institute for Occupational Safety and Health; Indicative limit value, set by the European Union; Threshold limit value, set by the American Conference of Governmental Industrial Hygienists; Occupational exposure banding, a process that can be used when not enough data are available to ...

  6. Short-term exposure limit - Wikipedia

    en.wikipedia.org/wiki/Short-term_exposure_limit

    STEL is a term used in exposure assessment, occupational health, industrial hygiene and toxicology. The STEL may be a legal limit in the United States for exposure of an employee to a chemical substance. The Occupational Safety and Health Administration (U.S. OSHA) has set OSHA-STELs for 1,3-butadiene, [1] benzene [2] and ethylene oxide. [3]

  7. Workplace exposure monitoring - Wikipedia

    en.wikipedia.org/wiki/Workplace_exposure_monitoring

    One key aspect involves the comparison of exposure monitoring results with established health and safety guidelines. [11] This analysis acts as a checkpoint, precisely aligning exposure levels with permissible limits and indicating when corrective measures are necessary. [4]

  8. American Conference of Governmental Industrial Hygienists

    en.wikipedia.org/wiki/American_Conference_of...

    The first list of Threshold Limit Values and Biological Exposure Indices (the TLVs and BEIs book) was published in 1962. A new edition is now published annually. Today's list of TLVs and BEIs includes over 600 chemical substances and physical agents, as well as over 30 Biological Exposure Indices for selected chemicals.

  9. Recommended exposure limit - Wikipedia

    en.wikipedia.org/wiki/Recommended_exposure_limit

    National Institute for Occupational Safety and Health (NIOSH) RELs are designed to protect the health and well-being of workers by recommending safe exposure levels. To really use these guidelines well, safety professionals need to understand the recommended exposure levels, how to measure them, and ways to make sure workers aren't exposed to harmful stuff.

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