ISO 23497
Determination of pH value - Technical buffer solutions for the calibration of technical measuring installations
Bestimmung des pH-Wertes - Technische Pufferlösungen, vorzugsweise zur Kalibrierung und Justierung von technischen pH-Messeinrichtungen
Responsible national committee
NA 002-00-07-12 AK - Electrical conductivity and pH-value
Responsible international committee
ISO/TC 35/SC 9/WG 30 - Properties prior to and during application and drying