ASTM E877-08
(Practice)Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition
Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition
SIGNIFICANCE AND USE
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 E 882.
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.
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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.
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Designation: E877 − 08
StandardPractice for
Sampling and Sample Preparation of Iron Ores and Related
1
Materials for Determination of Chemical Composition
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.
3
1. Scope Iron Ores (Withdrawn 1995)
1.1 This practice covers procedures for mechanical sam-
3. Terminology
pling of iron ores and related materials in a falling stream or
3.1 Definitions—For definitions of terms used in this test
stopped-belt sampling and preparing the gross sample to the
method, refer to Terminology E135.
various test samples required for each characteristic to be
3.1.1 nominal size—in sampling, the opening of the screen
measured. Included as Annexes are (1) design criteria to
of the standard series that would pass 95 % of a representative
prevent bias, (2) statistical methods to determine quality
sample.
variation and precisions of sampling and division, and (3)a
3.1.2 precision—a measure of reproducibility of test results,
method for comparing two sampling procedures for possible
using the same equipment and method, statistically derived
systematic differences.
from multiple data expressed at 95 % confidence level.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Practice
responsibility of the user of this standard to establish appro-
4.1 The precision required for the sampling and sample
priate safety and health practices and determine the applica-
preparation steps is calculated based on the objectives of the
bility of regulatory limitations prior to use. Specific precau-
testing, resulting in a sampling plan specifying the minimum
tionary statements are given in Section 8.
weights and number of increments required for each step in the
procedure. Samples are then collected, dried, blended, divided,
2. Referenced Documents
crushed, pulverized, and ground as required by the test
2
2.1 ASTM Standards:
methods to be utilized.
E135 Terminology Relating to Analytical Chemistry for
Metals, Ores, and Related Materials
5. Significance and Use
E276 TestMethodforParticleSizeorScreenAnalysisatNo.
5.1 This practice is to be used for sampling and sample
4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and
preparation of iron ores and related materials, prior to use of a
Related Materials
referee method for testing for compliance with compositional
E279 Test Method for Determination ofAbrasion Resistance
specifications for metal content or physical properties. It is
of Iron Ore Pellets and Sinter by the Tumbler Test
assumedthatallwhousethisprocedurewillbetrainedanalysts
E389 TestMethodforParticleSizeorScreenAnalysisatNo.
capable of performing common laboratory practices skillfully
4 (4.75-mm) Sieve and Coarser for Metal-Bearing Ores
and safely. It is expected that work will be performed in a
and Related Materials
properly equipped laboratory and that proper waste disposal
E882 Guide for Accountability and Quality Control in the
procedures will be followed. Appropriate quality control prac-
Chemical Analysis Laboratory
tices must be followed, such as those described in Guide E882.
E1072 Test Method for Low Temperature Breakdown of
5.2 Adequate methods for obtaining representative samples
for testing the chemical and physical properties of a consign-
ment of iron ore are essential. The sale and use are dependent
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
on the chemical or physical properties, or both, of an ore.
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
Subcommittee E01.02 on Ores, Concentrates, and Related Metallurgical Materials.
5.3 The criteria to prevent bias may be used for both design
Current edition approved Nov. 1, 2008. Published December 2008. Originally
of a sampling system and in checking the design of an existing
approved in 1982. Last previous edition approved in 2003 as E877 – 03. DOI:
10.1520/E0877-08.
system.
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
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
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E877 − 08
6. Apparatus 7.2.2 Overall precisions for oth
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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:E877–03 Designation: E 877 – 08
Standard Practice for
Sampling and Sample Preparation of Iron Ores and Related
MaterialsSampling and Sample Preparation of Iron Ores and
Related Materials for Determination of Chemical
1
Composition
This standard is issued under the fixed designation E 877; 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 Thispracticecoversproceduresformechanicalsamplingofironoresandrelatedmaterialsinafallingstreamorstopped-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 problems,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. Specific precautionary statements are given in Section 8.
2. Referenced Documents
2
2.1 ASTM Standards:E135Terminology Relating to Analytical Chemistry for Metals, Ores and Related Materials
E276Test Method for Particle Size or ScreenAnalysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related
2
Materials 135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
2
E279Test Method for Determination of Abrasion Resistance of Iron Ore Pellets and Sinter (Tumbler Test) 276 Test Method
for Particle Size or Screen Analysis at No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and Related Materials
E389TestMethodforParticleSizeorScreenAnalysisatNo.4(4.75-mm)SieveandCoarserforMetalBearingOresandRelated
Materials 279 Test Method for Determination of Abrasion Resistance of Iron Ore Pellets and Sinter by the Tumbler Test
3
E882Guide forAccountability and Quality Control in the ChemicalAnalysis Laboratory 389 Test Method for Particle Size or
Screen Analysis at No. 4 (4.75-mm) Sieve and Coarser for Metal-Bearing Ores and Related Materials
E 882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
3
E 1072 Test Method for Low Temperature Breakdown of Iron Ores
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E 135.
3.1.1 nominal size—in sampling, the opening of the screen of the standard series that would pass 95 % of a representative
sample.
3.1.2 precision—a measure of reproducibility of test results, using the same equipment and method, statistically derived from
multiple data expressed at 95 % confidence level.
4. Summary of Practice
4.1 The precision required for the sampling and sample preparation steps areis calculated based on the objectives of the testing,
resulting in a sampling plan specifying the minimum weights 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.
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 June 10, 2003. Published September 2003. Originally approved in 1982. Last previous edition approved in 1998 as E877–93 (1998).
Current edition approved Nov. 1, 2008. Published December 2008. Originally approved in 1982. Last previous edition approved in 2003 as E 877 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 03.05.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Withdrawn. 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.
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E877–08
5. Significance and
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