See Report 19-P-0251. OIG states that it conducted an audit to determine the effectiveness of EPA oversight in assuring “that emission stack tests are conducted in accordance with EPA regulation, ...

STEMart's Particulate Matter Testing uses two methods, the Light Obscuration Particle Count test and the Microscopic Particle Count test. The former test is adapted from the United States Pharmacopeia ...

Editor's note: Industry Insights are sponsored blogs submitted by manufacturers and suppliers serving the fire service industry. In addition to traditional hoods, the 2018 edition of the NFPA 1971 ...

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It is crucial to monitor particle contamination in lubrication and fuel systems to prevent the wear and failure. Legacy methods for particle size analysis, like light obscuration, assume that ...