ISO 6842:1989
Surface active agents; sulfated ethoxylated alcohols and alkylphenols; determination of total active matter content

Standard No.

ISO 6842:1989

Release Date

1989

Published By

International Organization for Standardization (ISO)

Latest

ISO 6842:1989

Scope

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.

ISO 6842:1989 history

• 1989 ISO 6842:1989 Surface active agents; sulfated ethoxylated alcohols and alkylphenols; determination of total active matter content
• 1983 ISO 6842:1983 Surface active agents — Polyethoxylated alcohol and alkylphenol sulfates — Determination of total active matter content