Soaps and detergents — Determination of chelating agent content — Titrimetric method

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

19-04-1990

Publisher

International Organization for Standardization

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.

DevelopmentNote	Also numbered as BS 3762-3.23(1990) (07/2005)
DocumentType	Standard
Pages	2
PublisherName	International Organization for Standardization
Status	Current
Supersedes	ISO 4325:1977

Standards	Relationship
NEN ISO 4325 : 1990	Identical
BS 1715-2.9:1990	Similar to
NF ISO 4325 : 1990	Identical
UNE 55544:1992	Identical
IS 16829 : 2018	Identical
PN ISO 4325 : 2000	Identical
NBN ISO 4325 : 1994	Identical
BS 3762-3.23(1986) : LATEST	Similar to

BS 3762-0:1991	Analysis of formulated detergents General introduction
BS 1715-1:1991	Analysis of soaps General introduction, sampling, and test for presence of synthetic anionic-active surface active agents
BS 3762-0:1989	Analysis of formulated detergents Introduction and general methods
BS 1715-1:1989	Analysis of soaps. General introduction, sampling, and test for presence of synthetic anionic-active surface active agents