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Why are blanks required by the lab for each set of sampling tubes or cassettes I submit?

April 26, 2017blanks cassettes lab Sampling submit tubes

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Why are blanks required by the lab for each set of sampling tubes or cassettes I submit?

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Blanks are an important quality control component of any air sampling program. Blanks ensure that the background of the sampling media is below acceptable limits. Blanks also verify that the analytical procedure is functioning within acceptable parameters.