ISO 2489:1973

Potassium sulphate for industrial use — Determination of acidity to methyl orange
The principle of the analysis consists in dissolution of the test solution in water and titration of the acidity, in presence of methyl orange, using standard volumetric sodium hydroxide solution. If the solution is coloured yellow the product is not acid with respect to methyl orange.
OEN:
ISO
Langue:
English
Code(s) de l'ICS:
71.060.50
Statut:
Annulée
Date de Publication:
1973-03-31
Numéro Standard:
ISO 2489:1973