ISO 5274:1979
w
ISO 5274:1979
11270

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 

  •  :  Withdrawn
     : 1979-07
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.080.15 Aromatic hydrocarbons

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.