ISO 3566:1976
Sodium fluoride primarily used for the production of aluminium; Determination of chlorides content; Turbidimetric method

Standard No.

ISO 3566:1976

Release Date

1976

Published By

International Organization for Standardization (ISO)

Latest

ISO 3566:1976

Scope

Applicable to products having a chlorides content, expressed as chlorine, of equal to or more than 0.005 % (m/m). The principle consists in precipitation, in the presence of boric acid, of chloride ions with silver nitrate. Comparison of the opalescence of the test solution with that of standard matching solutions using Nessler tubes against a black background. Turbidimetric evaluation of the mass of precipitate.

ISO 3566:1976 history

• 1976 ISO 3566:1976 Sodium fluoride primarily used for the production of aluminium; Determination of chlorides content; Turbidimetric method