DIN 19260:2012 pH measurement - General terms and definitions
DIN 19266:2015 pH measurement - Reference buffer solutions for the calibration of pH measuring equipment
DIN EN ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories (ISO/IEC 17025:2005); German and English version EN ISO/IEC 17025:2005
DIN ISO 5725-2:2002 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 5725-2:1994 including Technical Corrigendum 1:2002)
DIN 10776-2:2016 history
2016DIN 10776-2:2016-07 Analysis of coffee and coffee products - Determination of pH and acid content - Part 2: Method for soluble coffee
2016DIN 10776-2:2016 Analysis of coffee and coffee products - Determination of pH and acid content - Part 2: Method for soluble coffee
1998DIN 10776-2:1998 Analysis of coffee and coffee products - Determination of pH and acid content - Method for soluble coffee