Reference number
ISO 4316:1977
ISO 4316:1977
© ISO 2024
International Standard
ISO 4316:1977
Surface active agents — Determination of pH of aqueous solutions — Potentiometric method
Edition 1
1977-08
1977-08
ISO 4316:1977
10185
Published
(Edition 1, 1977)
This publication was last reviewed and confirmed in 2019.
Therefore this version remains current.
Abstract
The determination is carried out in the following way: Potentiometric measurement of the potential difference between a glass electrode and a reference electrode dipping in an aqueous solution of the sample. This method is only applicable when so indicated in the specific standard for each product.