ASTM E691-23

Annotation of standard text ASTM E691-23 :

This practice describes the techniques for planning, conducting, analyzing, and treating the results of an interlaboratory study (ILS) of a test method. The statistical techniques described in this practice provide adequate information for formulating the precision statement of a test method. This practice is also concerned exclusively with test methods which yield a single numerical figure as the test result, although the single figure may be the outcome of a calculation from a set of measurements. ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility and knowledge of the test method precision is useful in commerce and in technical work when comparing test results against standard values or between data sources.


Keywords:
precision, repeatability, reproducibility, repeatability limit, reproducibility limit,, ICS Number Code 19.020 (Test conditions and procedures in general)