Reference number
ISO 6384:1981
ISO 6384:1981
© ISO 2024
International Standard
ISO 6384:1981
Surface active agents — Technical ethoxylated fatty amines — Methods of analysis
Edition 1
1981-04
1981-04
ISO 6384:1981
12717
Published
(Edition 1, 1981)
This publication was last reviewed and confirmed in 2024.
Therefore this version remains current.
Abstract
On separate test portions the following determinations are carried out: measurement of the apparent pH in methanolic medium; determination of the water content; determination of the distribution of primary, secondary and tertiary amines contents; determination of oxyethylene groups content; determination of sulphated ash. Furthermore an aqueous or methanolic solution of a test portion is prepared and the free polyethylene glycols are isolated. On the separated polyethylene glycols the absence of nitrogen is verified and their relative molecular mass is determined.