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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Amine Testing for Environmental Safety

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Amines are a broad class of compounds that are found in many everyday applications. These applications include corrosion inhibitors, lubricating oils, herbicides, and prescription drugs. The most common amine is ammonia, which is found in many household cleaning agents. There are, however, many forms of amines both naturally occurring and synthetic that are hazardous to […]

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2014: A Year of Discovery and Innovation at RJ Lee Group

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  • 5:04PM Dec 29, 2014
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2014 was a year that, while demanding, was also challenging and exciting. We adjusted to meet the impact of reduced government spending, the slowing of the global economy, and the overall fiscal uncertainty felt by our customers that eventually reflected in our revenues. Fortunately, we were able to recoup this setback and by the third […]

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Petrography

The Top 10 Things to Tell Your Petrographer

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  • 9:32AM Dec 18, 2014
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If you want solid answers to your concrete questions, a petrographer can help. Petrographers use a combination of visual inspection, microscopy, and chemical techniques to examine concrete cores. These analyses provide a basis for understanding the condition of the material, why it failed, or the material’s remaining service life. If you are submitting concrete cores, […]

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