Non-ionic surface active agents — Determination of sulphated ash — Gravimetric method
STANDARD published on 1.5.1977
Designation standards: ISO 4322:1977
Publication date standards: 1.5.1977
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: International technical standard
Category: Technical standards ISO
Description / Abstract: The method consists in calcination of a test portion in the presence of sulphuric acid solution and weighing of the ash in form of sulphate.