ASTM E465-23
(Test Method)Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
Standard Test Methods for Determination of Manganese (IV) in Manganese Ores by Redox Titrimetry
SIGNIFICANCE AND USE
4.1 This test method is intended to be used for compliance with compositional specifications for manganese dioxide content in manganese 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 shall be followed, such as those described in Guide E882.
SCOPE
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:
Sections
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 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, 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.
General Information
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Standards Content (Sample)
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.
Designation: E465 − 23
Standard Test Methods for
Determination of Manganese (IV) in Manganese Ores by
1
Redox Titrimetry
This standard is issued under the fixed designation E465; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope erations for Chemical Analysis of Metals, Ores, and
Related Materials
1.1 These test methods cover the determination of manga-
E135 Terminology Relating to Analytical Chemistry for
nese dioxide in amounts commonly found in manganese ore.
Metals, Ores, and Related Materials
The determination measures the amount of manganese (IV)
E882 Guide for Accountability and Quality Control in the
present in the sample. The result may be expressed as available
Chemical Analysis Laboratory
oxygen or as manganese dioxide. The following test methods
are included and may be used interchangeably:
3. Terminology
Sections
3.1 Definitions—For definitions of terms used in this test
Test Method A (Ferrous Ammonium Sulfate) 9 – 13
method, refer to Terminology E135.
Test Method B (Periodate (Sodium Oxalate) 14 – 18
1.2 The values stated in SI units are to be regarded as
4. Significance and Use
standard. No other units of measurement are included in this
4.1 This test method is intended to be used for compliance
standard.
with compositional specifications for manganese dioxide con-
1.3 This standard does not purport to address all of the
tent in manganese ores. It is assumed that all who use these
safety concerns, if any, associated with its use. It is the
procedures will be trained analysts capable of performing
responsibility of the user of this standard to establish appro-
common laboratory procedures skillfully and safely. It is
priate safety, health, and environmental practices and deter-
expected that work will be performed in a properly equipped
mine the applicability of regulatory limitations prior to use.
laboratory and that proper waste disposal procedures will be
1.4 This international standard was developed in accor-
followed. Appropriate quality control practices shall be
dance with internationally recognized principles on standard-
followed, such as those described in Guide E882.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Interferences
mendations issued by the World Trade Organization Technical
5.1 The elements ordinarily present in manganese ores do
Barriers to Trade (TBT) Committee.
not interfere in either test method.
2. Referenced Documents
6. Reagents and Materials
2
2.1 ASTM Standards:
6.1 Purity of Reagents—Reagent grade chemicals shall be
D1193 Specification for Reagent Water
used in all tests. Unless otherwise indicated, it is intended that
E29 Practice for Using Significant Digits in Test Data to
all reagents conform to the specifications of the Committee on
Determine Conformance with Specifications
Analytical Reagents of the American Chemical Society where
E50 Practices for Apparatus, Reagents, and Safety Consid-
3
such specifications are available. Other grades may be used,
provided it is first ascertained that the reagent is of sufficient
1
high purity to permit its use without lessening the accuracy of
These test methods are under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores, and Related Materials and are the direct
the determination.
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
lurgical Materials.
Current edition approved April 1, 2023. Published April 2023. Originally
3
approved in 1972. Last previous edition approved in 2017 as E465 – 11 (2017). ACS Reagent Chemicals, Specifications and Procedures for Reagents and
DOI: 10.1520/E0465-23. Standard-Grade Reference Materials, American Chemical Society, Washington,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or DC. For suggestions on the testing of reagents not listed by the American Chemical
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset,
Standards volume information, refer to the standard’s Document Summary page on U.K., and the United States Pharmacopeia and National Formulary, U.S. Pharma-
the ASTM website. copeial Convention, Inc. (USPC), Rockville, MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: E465 − 11 (Reapproved 2017) E465 − 23
Standard Test Methods for
Determination of Manganese (IV) in Manganese Ores by
1
Redox Titrimetry
This standard is issued under the fixed designation E465; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
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:
Sections
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 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 healthsafety, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.
1
These test methods are under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and are the direct responsibility
of Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved May 1, 2017April 1, 2023. Published June 2017April 2023. Originally approved in 1972. Last previous edition approved in 20112017 as E465
– 11. DOI: 10.1520/E0465-11R17.11 (2017). DOI: 10.1520/E0465-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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E465 − 23
4. Significance and Use
4.1 This test method is intended to be used for compliance with compositional specifications for manganese dioxide content in
manganese 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 shall be followed, such as those described in Guide
E882.
5. Interferences
5.1 The elements ordinarily present in manganese ores do not interfere in either test method.
6. Reagents and Materials
6.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society where such
3
specifications are available. Other grades may be used, provided it is first ascertained that the reagent is of sufficient high purity
to permit its use without lessening the accuracy of the determination.
6.2 Purity of Water—Unless otherwise indicated, references to water shall be understood to mean reagent water conforming to
Type I or II of Specification D1193. Type III or IV may be used if t
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