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ISO 6842:1989

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

Üldinfo

Kehtiv alates 21.09.1989
Tegevusala (ICS grupid)
71.100.40 Pindaktiivsed ained
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
21.09.1989
Põhitekst
Põhitekst
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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