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ISO 894:1977 Surface active agents -- Technical sodium primary alkylsulphates -- Methods of analysis
standard by International Organization for Standardization, 11/01/1977
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Specifies the following methods of analysis for the substances to be tested: measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of total alkalinity, determination of matter extractable by light petroleum, determination of matter extractable by diethyl ether after acid hydrolysis (combined technical fatty alcohols), determination of sodium sulphate content, determination of sodium chloride content. In annex a general schema of analysis is given.