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Swabs or Stubs? It’s Not Even A Question

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Gunshot Residue Analysis Gunshot residue (GSR) has long been collected during criminal investigations.  Currently, the standard method for collecting primer GSR is using adhesive stubs which can then be analyzed via scanning electron microscopy (SEM).  Prior to SEM analysis, the most common method of analyzing primer GSR was atomic absorption which utilizes cotton swabs for […]

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Heath Low Earns Certified Quality Engineer Designation

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We are pleased to announce that Heath Low, Quality Assurance Analyst for RJ Lee Group’s Columbia Basin Analytical Laboratories, has been certified by the American Society of Quality (ASQ) as a Certified Quality Engineer (CQE). The CQE designates that the individual understands the principles of service and product quality evaluation control. These principles and applied […]

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Characterizing Powder Metal for 3D Printing: Particulate Contamination

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This article is Part 2 of a series on Powdered Metal Manufacturing Characteristics for 3D Printing written by Stephen Kennedy, Ph.D. of RJ Lee Group. Additive manufacturing, also known as 3D printing, is quickly becoming an industry standard for product manufacturing in a variety of applications, including medical devices, aviation and aeronautics parts, and transportation. […]

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Characteristics of Powder Metal for 3D Printing

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In Powder Metal (PM) applications such as 3D printing, the flow and packing behavior of PM is influenced by particle size and shape distributions. These properties can be measured in a statistically meaningful way using computer controlled scanning electron microscopy (CCSEM). In livetime, the SEM program detects a particle, defines its perimeter, calculates its size and […]

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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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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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EBSD for Crystal Particle Analysis

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The analysis of a material’s crystallographic properties can provide a researcher with a wealth of information, including the identification, processing history, and much more. Although many techniques can be used to obtain various pieces of information, electron backscatter diffraction (EBSD) can give a more complete picture of not only what the substance is, but what […]

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Flow Loop Evaluation of Friction Reducer Performance

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A properly designed friction reducer (FR) system provides technical and economic performance that exceeds conventional FR systems in the oil and gas industry, particularly when using recycled produced water.  RJ Lee Group provides flow loop evaluations of friction reducer performance that are free of conflict of interest issues associated with of chemical or completion service […]

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RJ Lee Group Releases 2017 Laboratory Services Guide

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RJ Lee Group is pleased to announce the release of its 2017 Laboratory Services Guide. The guide lists many of the methods, equipment, and pricing for laboratory services. To see a full list of our services in a searchable format, please click here. If you’re looking for a type of analysis that isn’t listed in […]

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