ISO 9062:1992
Acid-grade and ceramic-grade fluorspar; determination of manganese content; periodate spectrometric method

Standard No.

ISO 9062:1992

Release Date

1992

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Latest

ISO 9062:1992

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.

ISO 9062:1992 history

• 1992 ISO 9062:1992 Acid-grade and ceramic-grade fluorspar; determination of manganese content; periodate spectrometric method
• 1989 ISO 9062:1989 Acid-grade and ceramic-grade fluorspar — Determination of manganese content — Periodate spectrometric method