Reference number
ISO 9062:1992
© ISO 2025
ISO 9062:1992
Acid-grade and ceramic-grade fluorspar — Determination of manganese content — Periodate spectrometric method
Edition 2
1992-12
Withdrawn
Withdrawn (Edition 2, 1992)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 1992-12
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 2
    Number of pages
     : 4
  • Technical Committee :
    ISO/TC 175
    ICS :
    73.080 
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