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Norm
ÖNORM EN ISO 9963-2
Issue date: 1996 02 01
Water quality - Determination of alkalinity - Part 2: Determination of carbonate alkalinity (ISO 9963-2:1994)
This part of IS0 9963 specifies a method for the titrimetric determination of carbonate alkalinity in natural and drinking water. Using a higher pH value for the endpoint...
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Publisher:
Austrian Standards International
Format:
Digital | 9 Pages
Language:
German
| English
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ICS
This part of IS0 9963 specifies a method for the titrimetric determination of carbonate alkalinity in natural and drinking water. Using a higher pH value for the endpoint than the method specified in
IS0 9963-1, the influence of other hydrogen acceptors, such as anions of humic acids, is reduced by the procedure. The method is intended for samples with a carbonate alkalinity between 0,01 mmol/l and 4 mmol/l (as H+equivalents). For samples containing higher concentrations of alkalinity, a smaller test portion can be used
for analysis. In this context, carbonate alkalinity is often called total alkalinity and usually has nearly the same numerical
value as methyl orange alkalinity (MO-alkalinity). The endpoint detection, using a pH-meter is less prone to interferences than the use of the indicator.
ÖNORM EN ISO 9963-2
1996 02 01
Water quality - Determination of alkalinity - Part 2: Determination of carbonate alkalinity (ISO 996...
Norm
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ISO 385-1:1984
Issue date :
1984 10 01
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ISO 3696:1987
Issue date :
1987 04 09
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ISO 5667-2:1991
Issue date :
1991 07 18
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ISO 9963-1:1994
Issue date :
1994 11 10
Water quality — Determination of alkalinity — Part 1: Determination of total and composite alkalinity
Norm
ISO 9963-2:1994
Issue date :
1994 11 10
Water quality — Determination of alkalinity — Part 2: Determination of carbonate alkalinity