SYMPOSIA PAPER Published: 01 January 1960

D 1067 - 57 T Tentative Methods of Test for Acidity and Basicity (Alkalinity) in Industrial Water and Industrial Waste Water


(a) These methods cover the determination of acidity and basicity (alkalinity) in industrial water and industrial waste water. Procedures are given for the determination of a titration curve that will define the inflection points and the buffering capacity, and for the determination of acidity or basicity (alkalinity) to a predesignated pH end point. Three methods are given, as follows: (b) The Referee Method is electrometric and is the most precise and accurate of the three methods. Non-Referee Method A depends on the matching of colors with those of buffered standards and is satisfactory for routine control use, provided the sample contains no buffering materials at the end point. Non-Referee Method B depends upon the color change of an indicator during the course of a titration and is suitable for routine use, providing the sample contains no buffering materials at the end point.

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Committee D-19
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Developed by Committee: D19
Pages: 338–343
DOI: 10.1520/STP48538S
ISBN-EB: 978-0-8031-8099-4
ISBN-13: 978-0-8031-6884-8