International Standard
ISO 6844:1983
Surface active agents — Determination of mineral sulfate content — Titrimetric method
Reference number
ISO 6844:1983
ISO 6844:1983
Edition 1
1983-02
1983-02
© ISO 2024
International Standard
p
ISO 6844:1983
13351
Published
(Edition 1, 1983)
This standard was last reviewed and confirmed in 2019.
Therefore this version remains current.
Abstract
A buffered acetonic solution of a test portion is titrated with a standard volumetric lead(II) nitrate solution in the presence of dithizone as indicator. The method is applicable to anionic surface active agents, containing sodium, ammonium and alkanolamine sulphates. It is not applicable to products containing other compounds such as phosphates or large amounts of chloride nor is it applicable in the presence of large amounts of salts of weak acids (for example, soaps or monoesters of sulphosuccinic acid).
Life cycle
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)