ISO-6842 › Surface active agents -- Sulfated ethoxylated alcohols and alkylphenols -- Determination of total active matter content

ISO-6842 - 2ND EDITION - CURRENT


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A test portion is boiled under reflux with ethanol in the presence of sodium sulphate. The solution is filtrated, the filtrate evaporated, and the residue weighed. Any sodium chloride present is determined by dissolution of the residue in aqueous acetone and titration with a standard volumetric silver nitrate solution. The mass of the residue is corrected for the sodium chloride content.

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Document Number

ISO 6842:1989

Revision Level

2ND EDITION

Status

Current

Publication Date

Oct. 1, 1989

Committee Number

ISO TC 91