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ISO 9062:1992

Acid-grade and ceramic-grade fluorspar — Determination of manganese content — Periodate spectrometric method

Publication date:   Dec 17, 1992

95.99   Withdrawal of Standard   Mar 3, 2010

General information

95.99   Withdrawal of Standard   Mar 3, 2010

ISO

ISO/TC 175 Fluorspar

International Standard

73.080   Non-metalliferous minerals

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Scope

Applicable to products having Mn-contents in the range 0,006 % to 0,4 %. Decomposition of the test portion with nitric and perchloric acids. After dilution follows oxidation of manganese to permanganate with sodium metaperiodate. Spectrometric measurement at 545 nm.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9062:1989

NOW

WITHDRAWN
ISO 9062:1992
95.99 Withdrawal of Standard
Mar 3, 2010