RJ Lee Group Offers Lower Detection Limits for Respirable Crystalline Silica

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New OSHA standards for respirable crystalline silica (RCS) have generated quite a bit of discussion among industrial hygiene and environmental health and safety professionals.  Enforcement of the new regulations began on September 23rd, 2017 for the construction industry, with a 30-day grace period so companies had ample time to implement control measures and address any […]

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Enhanced Respirable Crystalline Silica Analysis Surpasses Previous Reporting Limits

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Although respirable silica has been regulated for decades, the Occupational Health and Safety Administration (OSHA) put new guidelines into place in 2016, updating the existing 1971 rules. Across most industries, the new PEL level is 50 µg/m3 over an eight-hour shift, with an action level of 25 µg/m3. Our AIHA accredited laboratory provides sampling media […]

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How Raman Spectroscopy Identifies the Polymorphs of Silica (SiO2)

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  • 9:00AM Sep 02, 2015
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Article on crystalline silica by Mark Sparrow, an expert in Raman Spectroscopy analysis, electron and optical microscopy, EDS, FTIR spectroscopy, thermal methods and mercury porosimetry. Why is it Important to Identify the Polymorphs of Crystalline Silica? Silicon dioxide, or crystalline silica, is one of the most common minerals on earth and is mostly obtained by the […]

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Game Changing Regulation for Respirable Crystalline Silica? New Industries and New Challenges

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  • 9:23AM Sep 16, 2013
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OSHA has proposed new standards for respirable crystalline silica exposure and a new uniform airborne permissible exposure limit (PEL), calculated as an eight-hour time-weighted average. The agency has identified 25 industry subsectors encompassing approximately 130 industrial and maritime operations in which exposure to respirable crystalline silica is common during operations such as cutting and grinding […]

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