ISO 2484:1973
Potassium sulphate for industrial use; Determination of potassium content; Flame emission spectrophotometric method

Standard No.

ISO 2484:1973

Release Date

1973

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2002-05

Latest

ISO 2484:1973

Scope

The principle of the method consists in dissolution of a test portion previosly ground and sifted. Acidification to pH 1 after suitable dilution and atomization of the resultant solution in the burner of a flame spectrophotometer. Determination of the potassium content by measurement of the intensity of the radiation emitted at 766 nm. Comparison with the intensity of standard potassium chloride solutions acidified in the same way.

ISO 2484:1973 history

• 1973 ISO 2484:1973 Potassium sulphate for industrial use; Determination of potassium content; Flame emission spectrophotometric method