Surface active agents — Determination of pH of aqueous solutions — Potentiometric method
NORMA vydaná dňa 1.8.1977
Označenie normy: ISO 4316:1977
Dátum vydania normy: 1.8.1977
Počet strán: 2
Približná hmotnosť: 6 g (0.01 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / 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.