ASTM E877-03

Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials

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 problems, 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.

General Information

• Status: Historical
• Publication Date: 09-Jun-2003
• 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

Relations

• Replaces: ASTM E877-93(1998) - Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials
• Effective Date: 10-Jun-2003
• Replaced By: ASTM E877-08 - Standard Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical Composition
• Effective Date: 01-Nov-2008
• Referred By: ASTM E246-21 - Standard Test Methods for Determination of Iron in Iron Ores and Related Materials by Dichromate Titrimetry
• Effective Date: 10-Jun-2003
• Referred By: ASTM E382-20 - Standard Test Method for Determination of Crushing Strength of Iron Ore Pellets and Direct-Reduced Iron
• Effective Date: 10-Jun-2003
• Referred By: ASTM E314-16 - Standard Test Methods for Determination of Manganese in Iron Ores by Pyrophosphate Potentiometry and Periodate Spectrophotometry Techniques
• Effective Date: 10-Jun-2003
• Referred By: ASTM D6234-13(2020) - Standard Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
• Effective Date: 10-Jun-2003
• Referred By: ASTM E278-21 - Standard Test Method for Determination of Phosphorus in Iron Ores by Phosphomolybdate Coprecipitation and Nitric Acid Titrimetry
• Effective Date: 10-Jun-2003
• Referred By: ASTM E279-18 - Standard Test Method for Determination of Abrasion Resistance of Iron Ore Pellets, Lump, and Sinter by the Tumbler Test
• Effective Date: 10-Jun-2003
• Referred By: ASTM E247-21 - Standard Test Method for Determination of Silica in Manganese Ores, Iron Ores, and Related Materials by Gravimetry
• Effective Date: 10-Jun-2003
• Referred By: ASTM E2293-19 - Standard Practice for Drying of Metal Bearing Ores, Concentrates, and Related Metallurgical Materials for the Determination of Mercury
• Effective Date: 10-Jun-2003
• Referred By: ASTM E738-20 - Standard Test Method for Determination of Aluminum in Iron Ores and Related Materials by EDTA Complexometric Titrimetry
• Effective Date: 10-Jun-2003
• Referred By: ASTM E1070-17a - Standard Test Method for Determination of Phosphorus in Iron Ores by Phospho-Molybdenum-Blue Spectrophotometry
• Effective Date: 10-Jun-2003
• Referred By: ASTM D8155-17 - Standard Practice for Shake Extraction of Solid Mining and Metallurgical Processing Waste with Water
• Effective Date: 10-Jun-2003
• Referred By: ASTM E2972-15(2019) - Standard Guide for Production, Testing, and Value Assignment of In-House Reference Materials for Metals, Ores, and Other Related Materials
• Effective Date: 10-Jun-2003
• Referred By: ASTM D5744-18 - Standard Test Method for Laboratory Weathering of Solid Materials Using a Humidity Cell
• Effective Date: 10-Jun-2003

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 877 – 03
Standard Practice for
Sampling and Sample Preparation of Iron Ores and Related
1
Materials
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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3. Terminology
1.1 This practice covers procedures for mechanical sam- 3.1 Definitions—For definitions of terms used in this test
pling of iron ores and related materials in a falling stream or method, refer to Terminology E 135.
stopped-belt sampling and preparing the gross sample to the 3.1.1 nominal size—in sampling, the opening of the screen
various test samples required for each characteristic to be of the standard series that would pass 95 % of a representative
measured. Included as Annexes are (1) design criteria to sample.
prevent bias, (2) statistical methods to determine quality 3.1.2 precision—a measure of reproducibility of test results,
variation and precisions of sampling and division, and (3)a using the same equipment and method, statistically derived
method for comparing two sampling procedures for possible from multiple data expressed at 95 % confidence level.
systematic differences.
4. Summary of Practice
1.2 This standard does not purport to address all of the
safety problems, if any, associated with its use. It is the 4.1 The precision required for the sampling and sample
preparation steps are calculated based on the objectives of the
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- testing, resulting in a sampling plan specifying the minimum
weights and number of increments required for each step in the
bility of regulatory limitations prior to use. Specific precau-
tionary statements are given in Section 8. procedure. Samples are then collected, dried, blended, divided,
crushed, pulverized, and ground as required by the test
2. Referenced Documents
methods to be utilized.
2.1 ASTM Standards:
5. Significance and Use
E 135 Terminology Relating to Analytical Chemistry for
2
5.1 This practice is to be used for sampling and sample
Metals, Ores and Related Materials
E 276 Test Method for Particle Size or Screen Analysis at preparation of iron ores and related materials, prior to use of a
referee method for testing for compliance with compositional
No. 4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores
2
and Related Materials specifications for metal content or physical properties. It is
assumedthatallwhousethisprocedurewillbetrainedanalysts
E 279 Test Method for Determination of Abrasion Resis-
2
tance of Iron Ore Pellets and Sinter (Tumbler Test) capable of performing common laboratory practices skillfully
and safely. It is expected that work will be performed in a
E 389 Test Method for Particle Size or Screen Analysis at
No.4(4.75-mm)SieveandCoarserforMetalBearingOres properly equipped laboratory and that proper waste disposal
3
procedures will be followed. Appropriate quality control prac-
and Related Materials
E 882 Guide for Accountability and Quality Control in the ticesmustbefollowed,suchasthosedescribedinGuideE 882.
3
5.2 Adequate methods for obtaining representative samples
Chemical Analysis Laboratory
E 1072 Test Method for Low Temperature Breakdown of for testing the chemical and physical properties of a consign-
3
ment of iron ore are essential. The sale and use are dependent
Iron Ores
on the chemical or physical properties, or both, of an ore.
5.3 The criteria to prevent bias may be used for both design
1
This practice is under the jurisdiction of ASTM Committee E01 on Analytical
of a sampling system and in checking the design of an existing
Chemistry for Metals, Ores, and Related Materials and is the direct responsibility of
system.
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 E 877 – 93 (1998).
2
Annual Book of ASTM Standards, Vol 03.05.
3
Discontinued; see 1996 Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
E877–03
6. Apparatus 7.3 Equations:
7.3.1 Calculate overall precision as follows:
6.1 Any mechanical sampler is acceptable that either by
design or comparison, or both (as defined in Annex A1 and 2 2
s 1 s
w DM
b 5 2 1 1 1 (1)
ΠS D
Annex A4) can be shown to take nonbiased increments of at SDM
n c n
least minimum weight and number
...