Standard Practice for Estimating Uncertainty of Test Results Derived from Spectrophotometry

Importancia y uso:

5.1 Many competent measurement laboratories comply with accepted quality system requirements such as ISO 9001, QS 9000, or ISO 17025. When using standard test methods, the measurement results should agree with those from other similar laboratories within the combined uncertainty limits of the laboratories’ measurement systems. It is for this reason that quality system requirements demand that a statement of the uncertainty of the test results accompany every test result.

5.2 Preparation of uncertainty estimates is a requirement for laboratory certification under ISO 17025. This practice describes the procedures by which such uncertainty estimates may be calculated.

Subcomité:

E12.04

Referida por:

D7195-21

Volúmen:

06.01

Número ICS:

17.180.20 (Colours and measurement of light), 71.040.50 (Physicochemical methods of analysis)

Palabras clave:

control samples; spectrophotometry; test results; uncertainty; uncertainty budget;