BS EN ISO 8799:1996 Analysis of surface active agents (raw materials). Ethoxylated alcohol and alkylphenol sulfates. Method for determination of unsulfated matter content
2009BS EN ISO 8799:2009 Surface active agents - Sulfated ethoxylated alcohols and alkylphenols - Determination of content of unsulfated matter
1996BS EN ISO 8799:1996 Analysis of surface active agents (raw materials). Ethoxylated alcohol and alkylphenol sulfates. Method for determination of unsulfated matter content