ASTM E0465-24
Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
| Standard number: | ASTM E0465-24 |
| Released: | 01.10.2024 |
| Status: | Active |
| Pages: | 4 |
| Section: | 03.05 |
| Keywords: | manganese dioxide content; manganese ores; redox titrimetry; |
| ASTM number: | ASTM E465 |
| Supersedes: | E0465-23 |
1.1 These test methods cover the determination of manganese dioxide in amounts commonly found in manganese ore. The determination measures the amount of manganese (IV) present in the sample. The result may be expressed as available oxygen or as manganese dioxide. The following test methods are included and may be used interchangeably:
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| Test Method A (Ferrous Ammonium Sulfate) | 9 – 13 |
| Test Method B (Periodate (Sodium Oxalate) | 14 – 18 |
1.2 The values stated in SI units are 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.