Reference number
ISO 5274:1979
© ISO 2024
ISO 5274:1979
Aromatic hydrocarbons — Acid-wash test
Edition 1
1979-07
Withdrawn
Withdrawn (Edition 1, 1979)

Abstract

Specifies an acid washing test. Gives some indication of the degree of refining but does not give a precise measure of the amount of unsaturated compounds present as different unsaturated compounds produce different colourations with sulphuric acid. Shaking together of equal volumes of the sample and 95 % (m/m) sulphuric acid. Comparison of the colour of the acid layer with that of standard matching solutions.

General information

  • Status
     : Withdrawn
    Publication date
     : 1979-07
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 2
  • Technical Committee :
    ISO/TC 47
    ICS :
    71.080.15 
  • RSS updates

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