UNE 55-905-1991
Surface active agents. Soaps. Determination of low contents of free glycerol by milecular absorption spectrometry

Standard No.

UNE 55-905-1991

Release Date

1991

Published By

ES-AENOR

Scope

This standard specifies a spectrometric method for the determination of small free glycerin contents in soaps. The method is applicable to soaps whose free glycerin content is less than 0.5% by weight.