ASTM E342-11
Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry

Standard No.
ASTM E342-11
Release Date
2011
Published By
American Society for Testing and Materials (ASTM)
Status
Replace By
ASTM E342-11(2016)
Latest
ASTM E342-23
Scope

This test method is intended to be used for compliance with compositional specifications for chromium oxide content in chromium-bearing ores. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide E882.

1.1 This test method covers the determination of chromium oxide (Cr2O3) in chrome ores in the compositional range from 25 % to 60 %.

Note 18212;As used in this test method, % refers to a mass fraction (wt/wt %) (g/100g).

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM E342-11 history

  • 2023 ASTM E342-23 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
  • 2016 ASTM E342-11(2016) Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
  • 2011 ASTM E342-11 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
  • 2004 ASTM E342-04 Standard Test Method for Determination of Chromium Oxide in Chrome Ores by Permanganate Titrimetry
  • 1999 ASTM E342-99 Standard Test Method for Chromium Oxide in Chrome Ores



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