• OSHA Rule to Reduce Worker Exposure to Respirable Crystalline Silica
  • Karen

    <p>Karen D. Hamel, CSP, WACH, is a regulatory compliance professional, trainer and technical writer for New Pig. She has more than 22 years of experience helping EHS professionals find solutions to meet EPA, OSHA and DOT regulations and has had more than 100 articles published on a variety of EHS topics. Karen is a Certified Safety Professional (CSP), Walkway Auditor Certificate Holder (WACH), Community Emergency Response Team (CERT) trainer and hazmat technician. She also serves on the Blair County, Pa., LEPC and has completed a variety of environmental, safety, emergency response, DOT and NIMS courses, including Planning Section Chief. She has conducted seminars at national conferences and webinars for ASSE and other national organizations. She can be reached at 1-800-HOT-HOGS (468-4647) or by email karenea@newpig.com.</p>

  • Health and Safety Blogsays:
    12/16/2016 at 2:28 am Reply

    This was a very good example and it set things straight and in a good understanding way.

    • Brittanysays:
      12/20/2016 at 9:03 am Reply

      Thank you for the feedback!

      -Brittany

  • Erik Hallsays:
    12/21/2016 at 3:30 pm Reply

    Curious why there isn’t a manufacturing category in this list?

    • Brittanysays:
      12/22/2016 at 11:56 am Reply

      Great question, Erik! Manufacturing falls under the general industry category.

  • Mariesays:
    01/03/2017 at 9:28 am Reply

    Maybe I missed it, but the particle size of concern is PM10 and less, correct?

    • Karensays:
      01/10/2017 at 6:32 pm Reply

      Hi Marie,

      In the final rule, OSHA did not include a particle size. Instead, they defined respirable crystalline silica as “quartz, cristobalite, and/or tridymite contained in airborne particles that are determined to be respirable by a sampling device designed to meet the characteristics for respirable-particle-size-selective samplers specified in the International Organization for Standardization (ISO) 7708:1995: Air Quality – Particle Size Fraction Definitions for Health-Related Sampling” [29 CFR 1910.1053(b)].

      The ISO Standard provides definitions for “respirable fractions” of airborne particles as well as charts to help industrial hygienists determine inhalation ratios. In practice, most monitoring devices that would be used to sample respirable dust levels (such as respirable cyclones) are capable of detecting particles in the 1 to 10 micron range.

      -Karen

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