In June 2024, the U.S. Department of Transportation (DOT) published a final rule with revised procedures for workplace drug and alcohol testing using oral fluid. The revisions detail technical changes ...
Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...
WHEN OSHA's revised Respiratory Protection Standard for General Industry, 29 CFR 1910.134, became effective on April 8, 1998, it provided employers with an all-inclusive reference source for fit ...
The University of North Georgia (UNG) Testing Centers are governed by the National College Testing Association’s (NCTA) best practices and, as such, take seriously our role of providing a secure test ...
A sealed source means radioactive material that is permanently bonded or fixed in a capsule or matrix designed to prevent release and dispersal of the radioactive material under the most severe ...
The Hughson-Westlake method is based on the principle that short-tone burst are better heard against a silent background than a continuous tone separated by a short interval when the level is changing ...
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