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How accurate are measurements above the calibration curve 200 ppb?

April 26, 2017accurate calibration curve measurements ppb

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How accurate are measurements above the calibration curve 200 ppb?

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The device is calibrated between 0 and 200 ppb for exhaled NO measurements. In this range the accuracy is ± 2.5 ppb or 5 % (at 200 ppb). In the range 200300 ppb the accuracy is similar to that at the 200 ppb level.