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BS 6829-5.1:1990 Analysis of surface active agents (raw materials). Ethoxylated alcohol and alkylphenol sulphates. Method for determination of total active matter content
standard by BSI Group, 01/31/1990
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Boiling under reflux with ethanol, filtration, evaporation of the filtrate and weighing of the residue. Correction by determining any sodium chloride present by titration with silver nitrate solution.Cross References:
BS 3762:Part 1
BS 3978