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Homepage>ISO Standards>ISO 6842:1989-Surface active agents — Sulfated ethoxylated alcohols and alkylphenols — Determination of total active matter content
download between 0-24 hoursReleased: 1989
ISO 6842:1989-Surface active agents — Sulfated ethoxylated alcohols and alkylphenols — Determination of total active matter content

ISO 6842:1989

ISO 6842:1989-Surface active agents — Sulfated ethoxylated alcohols and alkylphenols — Determination of total active matter content

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Standard´s number:ISO 6842:1989
Pages:2
Edition:2
Released:1989
DESCRIPTION

ISO 6842:1989


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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