ISO 992:1975
Potassium hydroxide for industrial use; Determination of chlorides content; Mercurimetric method

Standard No.

ISO 992:1975

Release Date

1975

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2002-05

Latest

ISO 992:1975

Scope

The method is applicable to products the chloride content of which is greater than 25 mg/kg. The procedure is based on titration of the chloride ions with mercury(II) nitrate in the presence of diphenylcarbazone as indicator. - Replaces ISO Recommendation R 992-1969.

ISO 992:1975 history

• 1975 ISO 992:1975 Potassium hydroxide for industrial use; Determination of chlorides content; Mercurimetric method