ASTM D6569-23 PDF

Scope: 1.1 This test method covers the continuous determination of pH of water by electrometric measurement using the glass, the antimony or the ion-selective field-effect transistor (ISFET) electrode as the sensor. 1.2 This test method does not cover measurement of samples with less than 100 µS/cm conductivity. Refer to Test Method D5128. 1.3 This test method does not cover laboratory or grab sample measurement of pH. Refer to Test Method D1293. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D6569-23 Referenced Document

ASTM D1129 Standard Terminology Relating to Water
ASTM D1193 Standard Specification for Reagent Water
ASTM D1293 Standard Test Methods for pH of Water
ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
ASTM D3864 Standard Guide for Continual On-Line Monitoring Systems for Water Analysis
ASTM D5128 Standard Test Method for On-Line pH Measurement of Water of Low Conductivity