• Stephen Biss

Beer-Lambert Law as Stated in Training Aid is Over-Simplified and Inadequate


To obtain admissions that the concept of single point control test(s) at time of use is adequate, to verify calibration has not changed over time, is not good measurement science.

To obtain admissions that checks of linearity during annual maintenance or other periodic inspection are necessary to confirm linearity, to confirm that the instrument is still calibrated across the whole measuring interval.

To obtain an admission that although the Beer-Lambert Law suggests that the relationship between concentration in the sample chamber and the measurement result is linear (after adjusting for the logarithmic relationship of absorption/transmittance) is linear, there are instrumental deviations in the Beer-Lambert Law.

#controltest #calibration #verification #inspection #BeerLambert #linearity #annualmaintenance

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