Reference number
ISO 5274:1979
ISO 5274:1979
Aromatic hydrocarbons — Acid-wash test
Edition 1
1979-07
Retirada
ISO 5274:1979
11270
Retirada (Edición 1, 1979)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1979-07
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 47
    71.080.15 
  • RSS actualizaciones

¿Tiene alguna duda?

Consulte nuestras Ayuda y asistencia