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How do you calculate the concentration in ppm?

April 26, 2017CALCULATE concentration

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How do you calculate the concentration in ppm?

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The laboratory measures the milligrams (mg) of each chemical collected during the exposure of the monitoring badge. The collection rate for each chemical (milliliters/minute) is known from actual calibration tests. When the user provides the exposure time (hours or minutes), then it is a simple algebraic calculation to give the concentration in milligrams/cubic meter. The ppm is directly related to the milligrams/cubic meter for each chemical.