ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
GOST R EN 13804-2010 history
2010GOST R EN 13804-2010 Foodstuffs. Determination of trace elements. Performance criteria, general considerations and sample preparation