ISO 2489:1973
Potassium sulphate for industrial use; Determination of acidity to methyl orange

Standard No.

ISO 2489:1973

Release Date

1973

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2002-05

Latest

ISO 2489:1973

Scope

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.

ISO 2489:1973 history

• 1973 ISO 2489:1973 Potassium sulphate for industrial use; Determination of acidity to methyl orange