ISO 5725-4:2020

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ISO 5725-4:2020 is an International Organization for Standardization (ISO) standard that describes how to determine the accuracy of measurement methods and results. It is part 4 of the ISO 5725 series of standards. 

ISO 5725-4:2020 - Accuracy (trueness and precision) of measurement methods and results — Part 4: Basic methods for the determination of the trueness of a standard measurement method. Occupational health and safety.