Surface active agents — Determination of free alkalinity or free acidity — Titrimetric method
STANDARD published on 1.2.1977
Designation standards: ISO 4314:1977
Publication date standards: 1.2.1977
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Category: Technical standards ISO
Description / Abstract: The determination is carried out in the following way: Titration of an ethanolic or propanolic solution of the product with a standard volumetric potassium hydroxide or hydrochloric acid or sulphuric acid solution whichever is appropriate, in the presence of phenolphthalein as indicator.