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Chemists and researchers typically use the methods proposed by the Federal Trade Commission (FTC) and the Cooperation Centre for Scientific Research Relative to Tobacco (CORESTA) to define "tar." These guidelines define "tar" as the total particulate matter (TPM) in the mainstream smoke produced by a smoking machine designed to simulate real-life smoking behavior
Published 2018 Oct 3
How do you collect a sample for gonorrhea testing
We watch what we eat, exercise our mind, train in the gym, and fire up a well-deserved cigar when we can
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