ASTM E877-21

Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition and Physical Properties

SIGNIFICANCE AND USE
5.1 This practice is to be used for sampling and sample preparation of iron ores and related materials, prior to use of a referee method for testing for compliance with compositional specifications for metal content or physical properties. It is assumed that all who use this procedure will be trained analysts capable of performing common laboratory practices 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.  
5.2 Adequate methods for obtaining representative samples for testing the chemical and physical properties of a consignment of iron ore are essential. The sale and use are dependent on the chemical or physical properties, or both, of an ore.  
5.3 The criteria to prevent bias may be used for both design of a sampling system and in checking the design of an existing system.
SCOPE
1.1 This practice covers procedures for mechanical sampling of iron ores and related materials in a falling stream or stopped-belt sampling and preparing the gross sample to the various test samples required for each characteristic to be measured. Included as Annexes are (1) design criteria to prevent bias, (2) statistical methods to determine quality variation and precisions of sampling and division, and (3) a method for comparing two sampling procedures for possible systematic differences.  
1.2 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. Specific precautionary statements are given in Section 8.  
1.3 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

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 73.060.10 - Iron ores
• Technical Committee: E01 - Analytical Chemistry for Metals, Ores, and Related Materials
• Drafting Committee: E01.02 - Ores, Concentrates, and Related Metallurgical Materials

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: E877 − 21
Standard Practice for
Sampling and Sample Preparation of Iron Ores and Related
Materials for Determination of Chemical Composition and
1
Physical Properties
This standard is issued under the fixed designation E877; 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 of Iron Ore Pellets, Lump, and Sinter by the Tumbler Test
E389 Test Method for Particle Size or Screen Analysis at
1.1 This practice covers procedures for mechanical sam-
4.75 mm (No.4) Sieve and Coarser for Metal-Bearing
pling of iron ores and related materials in a falling stream or
Ores and Related Materials
stopped-belt sampling and preparing the gross sample to the
E882 Guide for Accountability and Quality Control in the
various test samples required for each characteristic to be
Chemical Analysis Laboratory
measured. Included as Annexes are (1) design criteria to
E1072 Test Method for Low Temperature Breakdown of
prevent bias, (2) statistical methods to determine quality
3
Iron Ores (Withdrawn 1995)
variation and precisions of sampling and division, and (3)a
method for comparing two sampling procedures for possible
3. Terminology
systematic differences.
3.1 Definitions—For definitions of terms used in this test
1.2 This standard does not purport to address all of the
method, refer to Terminology E135.
safety concerns, if any, associated with its use. It is the
3.1.1 nominal topsize, n—in sampling, the opening of the
responsibility of the user of this standard to establish appro-
screen of the standard series that would pass 95 % of a
priate safety, health, and environmental practices and deter-
representative sample.
mine the applicability of regulatory limitations prior to use.
3.1.2 precision, n—a measure of reproducibility of test
Specific precautionary statements are given in Section 8.
results, using the same equipment and method, statistically
1.3 This international standard was developed in accor-
derived from multiple data expressed at 95 % confidence level.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
4. Summary of Practice
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4.1 The precision required for the sampling and sample
Barriers to Trade (TBT) Committee.
preparation steps is calculated based on the objectives of the
testing, resulting in a sampling plan specifying the minimum
2. Referenced Documents
masses and number of increments required for each step in the
2
procedure. Samples are then collected, dried, blended, divided,
2.1 ASTM Standards:
crushed, pulverized, and ground as required by the test
E135 Terminology Relating to Analytical Chemistry for
methods to be utilized.
Metals, Ores, and Related Materials
E276 Test Method for Particle Size or Screen Analysis at
5. Significance and Use
4.75 mm (No. 4) Sieve and Finer for Metal-Bearing Ores
and Related Materials
5.1 This practice is to be used for sampling and sample
E279 Test Method for Determination ofAbrasion Resistance
preparation of iron ores and related materials, prior to use of a
referee method for testing for compliance with compositional
specifications for metal content or physical properties. It is
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
assumedthatallwhousethisprocedurewillbetrainedanalysts
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
capable of performing common laboratory practices skillfully
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Oct. 1, 2021. Published October 2021. Originally
and safely. It is expected that work will be performed in a
approved in 1982. Last previous edition approved in 2013 as E877 – 13. DOI:
properly equipped laboratory and that proper waste disposal
10.1520/E0877-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E
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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: E877 − 13 E877 − 21
Standard Practice for
Sampling and Sample Preparation of Iron Ores and Related
Materials for Determination of Chemical Composition and
1
Physical Properties
This standard is issued under the fixed designation E877; 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 This practice covers procedures for mechanical sampling of iron ores and related materials in a falling stream or stopped-belt
sampling and preparing the gross sample to the various test samples required for each characteristic to be measured. Included as
Annexes are (1) design criteria to prevent bias, (2) statistical methods to determine quality variation and precisions of sampling
and division, and (3) a method for comparing two sampling procedures for possible systematic differences.
1.2 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.
1.3 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:
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
E276 Test Method for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related
Materials
E279 Test Method for Determination of Abrasion Resistance of Iron Ore Pellets, Lump, and Sinter by the Tumbler Test
E389 Test Method for Particle Size or Screen Analysis at 4.75 mm (No.4) Sieve and Coarser for Metal-Bearing Ores and Related
Materials
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3
E1072 Test Method for Low Temperature Breakdown of Iron Ores (Withdrawn 1995)
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.
3.1.1 nominal topsize—topsize, n—in sampling, the opening of the screen of the standard series that would pass 95 % 95 % of a
representative sample.
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
Current edition approved Oct. 1, 2013Oct. 1, 2021. Published November 2013October 2021. Originally approved in 1982. Last previous edition approved in 20082013
as E877 – 08.E877 – 13. DOI: 10.1520/E0877-13.10.1520/E0877-21.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E877 − 21
3.1.2 precision—precision, n—a measure of reproducibility of test results, using the same equipment and method, statistically
derived from multiple data expressed at 95 % 95 % confidence level.
4. Summary of Practice
4.1 The precision required for the sampling and sample preparation steps is calculated based on the objectives of the testing,
resulting in a sampling plan specifying the minimum masses and number of increments required for each step in the procedure.
Samples are then collected, dried, blended, divided, crushed, pulverized, and ground as required by the test methods to be utilized.
5. Significance and Use
5.1 This practice is to be used for sampling and sample preparation of iron ores and related materials, prior to use of a referee
method for testing for compliance with compositional specifications for metal content or physical properties. It is assumed
...