Acetic anhydride esterification method applicable to polyethoxylated condensates of aliphatic and alicyclic compounds, for the determination of hydroxyl values of from 10 to 1000. Not applicable to propoxylated products.
BS 6829-4.6:1988 history
1988BS 6829-4.6:1988 Analysis of surface active agents (raw materials). Ethylene oxide adducts. Method for determination of hydroxyl value