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ISO 1104:1977
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ISO 1104:1977 Surface active agents -- Technical sodium alkylarylsulphonates (excluding benzene derivatives) -- Methods of analysis
standard by International Organization for Standardization, 11/01/1977
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Specifies the following determinations for the substances to be tested: Measurement of pH, determination of water content, determination of free alkalinity or free acidity, determination of matter extractable by light petroleum, determination of sodium alkylarylsulphonates content, determination of sodium sulphite content, determination of sodium sulphate content, determination of sodium chloride content. In annexes a general scheme of analysis and a rapid method for the determination of sodium alkylarylsulphonates are given.