ISO 4325:1990
Soaps and detergents — Determination of chelating agent content — Titrimetric method
A test portion of the sample is dissolved in water, the pH of the solution adjusted to 4.65 and the solution titrated against standard copper(II) sulphate solution using 1-(2-pyridylazo)-2-naphthol as indicator. Principally the method has been designed principally for determining ethylenediaminetetraacetic acid (EDTA) and it salts. Before determining other chelating agents, or determining ethylenediaminetetraacetic acid in the presence of other chelating agents, the applicability of the method should be confirmed.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$83.00 NZD
|
|
| Networkable PDF |
Price varies
|
Keep me up-to-date
Sign up to receive updates when there are changes to this standard
Related Information
Similar Standards
-
BS 1545:1990
Specification for liquid toilet soap
-
BS 1715-1:1991
Analysis of soaps, General introduction, sampling, and test for presence of synthetic anionic-active surface active agents
-
BS 1715-2.11:1989
Analysis of soaps. Quantitative test methods, Method for determination of ethanol-insoluble matter content
-
BS 1715-2.2:1989
Analysis of soaps. Quantitative test methods, Method for determination of total free alkali content