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
Publicado
(Edición 1, 1981)
Esta publicación se revisó y confirmó por última vez en 2024.
Por lo tanto, esta versión es la actual.
Resumen
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.