ISO 3121:1976

Boric acid, boric oxide and disodium tetraborates for industrial use — Determination of chloride content — Mercurimetric method
The principle consists in titration of the cloride ions with standard volumetric mercury(II) nitrate solution in presence of diphenylcarbazone as indicator until the colour of the solution matches the mauve of the standard end-point matching solution.
SDO:
ISO
Language:
English
ICS Codes:
71.060.01
Status:
Withdrawn
Publish date:
1976-03-31
Standard Number:
ISO 3121:1976