RS ISO 9963-1: 1994
Water quality — Determination of alkalinity — Part 1: Determination of total and composite alkalinity


This part of IS0 9963 specifies a method for the
titrimetric determination of alkalinity. It is intended for
the analysis of natural and treated water, and waste
water, and can be used directly for waters having an
alkalinity concentration of up to 20 mmol/l. For samples
containing higher concentrations of alkalinity, a
smaller test portion can be used for analysis. The
recommended lower limit is 0,4 mmol/l. Suspended
matter in the form of carbonate may interfere with the
analysis. This interference can be reduced by filtration
prior to the titration.
The endpoint detection, using a pH-meter, is less
prone to interferences than the use of the indicator.

General Information

RS ISO 9963-1: 1994ADOPTED ISO STANDARDSEnvironment. Health protection. Safety13First Edition
Jun 2019
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