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ISO 3703:1993

Acid-grade and ceramic-grade fluorspar — Determination of flotation agents

Mar 11, 1993
95.99   Withdrawal of Standard   Mar 3, 2010

General information

95.99     Mar 3, 2010

ISO

ISO/TC 175

International Standard

73.080  

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Scope

The principle of the method is treatment of a test portion with a mixture of dilute hydrochloric acid and an organic solvent, removal of the insoluble fluorspar by filtration under vacuum, separation of the organic phase containing the flotation agent, evaporation of the solvent and weighing of the residue. Applies to materials which have been subjected to flotation process and which have flotation agent contents equal to or greater than 0,002 % (m/m) of the dried material.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 3703:1976

NOW

WITHDRAWN
ISO 3703:1993
95.99 Withdrawal of Standard
Mar 3, 2010