ASTM E2242-12
(Test Method)Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure
Standard Test Method for Column Percolation Extraction of Mine Rock by the Meteoric Water Mobility Procedure
SIGNIFICANCE AND USE
This test method is intended as a means for obtaining an extract from mine rock samples. The extract may be used to estimate the final pH and release of certain constituents of the test sample under the laboratory conditions described in this test method.
The pH of the extraction fluid used in this test method should reflect the pH of precipitation in the geographic region in which the mine rock is being evaluated.
This test method is designed to mobilize potential contaminants present in the solids, so that the resulting extract can be used to assess leachate that could potentially be produced from mine rock in the field.
This test method has not been demonstrated to simulate actual site leaching conditions.
This test method produces extracts that are amenable to the determination of both major and minor (trace) constituents. When minor constituents are being determined, it is especially important that precautions be taken in sample preservation, storage and handling to avoid possible contamination of the extracts.
This test method is a comparative method intended for use as a routine method for monitoring mine rock. It is assumed that all who use this method will be trained analysts capable of performing skillfully and safely. It is expected that work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This test method provides a procedure for the column percolation extraction of mine rock in order to determine the potential for dissolution and mobility of certain constituents by meteoric water.
1.2 This test method is intended to describe the procedure for performing column percolation extractions only. It does not describe all types of sampling and analytical requirements that may be associated with its application.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 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.
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Designation:E2242–12
Standard Test Method for
Column Percolation Extraction of Mine Rock by the
1
Meteoric Water Mobility Procedure
This standard is issued under the fixed designation E2242; 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 Metals, Ores, and Related Materials
E691 Practice for Conducting an Interlaboratory Study to
1.1 This test method provides a procedure for the column
Determine the Precision of a Test Method
percolation extraction of mine rock in order to determine the
E877 Practice for Sampling and Sample Preparation of Iron
potential for dissolution and mobility of certain constituents by
Ores and Related Materials for Determination of Chemical
meteoric water.
Composition
1.2 This test method is intended to describe the procedure
E882 Guide for Accountability and Quality Control in the
for performing column percolation extractions only. It does not
Chemical Analysis Laboratory
describe all types of sampling and analytical requirements that
E1601 Practice for Conducting an Interlaboratory Study to
may be associated with its application.
Evaluate the Performance of an Analytical Method
1.3 The values stated in SI units are to be regarded as the
2.2 Other References:
standard.
Meteoric Water Mobility Procedure, Bureau of Mining
1.4 This standard does not purport to address all of the
Regulation and Reclamation, Nevada Division of Envi-
safety concerns, if any, associated with its use. It is the
ronmental Protection, 9/19/90
responsibility of the user of this standard to establish appro-
Standard Methods for the Examination of Water and Waste-
priate safety and health practices and determine the applica-
water, 18th edition, APHA/AWWA/WEF, 1992
bility of regulatory limitations prior to use.
3. Terminology
2. Referenced Documents
2
3.1 Definitions:
2.1 ASTM Standards:
3.1.1 For definitions of terms used in this test method, see
D1193 Specification for Reagent Water
Terminology E135.
D1293 Test Methods for pH of Water
3.1.2 meteoric water—rainfall that has the potential to
D6234 Test Method for Shake Extraction of Mining Waste
contact materials and mobilize soluble constituents from mine
by the Synthetic Precipitation Leaching Procedure
rock at a mining or mineral processing site.
D7237 Test Method for Free Cyanide with Flow Injection
3.1.3 mine rock—ore, waste rock or overburden excavated
Analysis (FIA) Utilizing Gas Diffusion Separation and
inordertorecovermetalsormineralsduringminingoperations
Amperometric Detection
or coarse processed ore such as heap leach spoils.
E50 Practices for Apparatus, Reagents, and Safety Consid-
erations for Chemical Analysis of Metals, Ores, and
4. Summary of Test Method
Related Materials
4.1 The test material is placed in a plastic column and
E135 Terminology Relating to Analytical Chemistry for
contacted with an equal weight of water during a 24 h leaching
period. The extract is collected and preserved for analysis of
1
inorganic constituents.
This test method 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 Metal- 5. Significance and Use
lurgical Materials.
5.1 This test method is intended as a means for obtaining an
CurrenteditionapprovedJune1,2012.PublishedJuly2012.Originallyapproved
extract from mine rock samples. The extract may be used to
in 2002. Last previous edition approved in 2007 as E2242 – 07. DOI: 10.1520/
E2242-12.
estimate the final pH and release of certain constituents of the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
test sample under the laboratory conditions described in this
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
test method.
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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E2242–12
5.2 The pH of the extraction fluid used in this test method 7.6 pH Meter, with a readability of 0.01 units and an
should reflect the pH of precipitation in the geographic region accuracy of at least 6 0.05 units at 25 °C.
in which the mine rock is being evaluated. 7.7 Tubing, surgical or synthetic tubing sufficient in diam-
5.3 This test method is designed to mobilize potential eter and length for the extraction column assembly (pump,
contaminants present in the solids, so that the resulting extract column outle
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:E2242–07 Designation:E2242–12
Standard Test Method for
Column Percolation Extraction of Mine Rock by the
1
Meteoric Water Mobility Procedure
This standard is issued under the fixed designation E2242; 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 Thistestmethodprovidesaprocedureforthecolumnpercolationextractionofminerockinordertodeterminethepotential
for dissolution and mobility of certain constituents by meteoric water.
1.2 This test method is intended to describe the procedure for performing column percolation extractions only. It does not
describe all types of sampling and analytical requirements that may be associated with its application.
1.3 The values stated in SI units are to be regarded as the standard.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1193 Specification for Reagent Water
D1293 Test Methods for pH of Water
D6234 Test Method for Shake Extraction of Mining Waste by the Synthetic Precipitation Leaching Procedure
D7237 TestMethodforFreeCyanidewithFlowInjectionAnalysis(FIA)UtilizingGasDiffusionSeparationandAmperometric
Detection
E50 PracticesforApparatus,Reagents,andSafetyConsiderationsforChemicalAnalysisofMetals,Ores,andRelatedMaterials
E135 TerminologyRelatingtoAnalyticalChemistryforMetals,Ores,andRelatedMaterialsE389TestMethodforParticleSize
or Screen Analysis at No. 4
(4.75-mm) Sieve and Coarser
for Metal-Bearing Ores and
Related Materials
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
E877 Practice for Sampling and Sample Preparation of Iron Ores and Related Materials for Determination of Chemical
Composition
E882 Guide for Accountability and Quality Control in the Chemical Analysis Laboratory
E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
2.2 Other References:
Meteoric Water Mobility Procedure, Bureau of Mining Regulation and Reclamation, Nevada Division of Environmental
Protection, 9/19/90
Standard Methods for the Examination of Water and Wastewater, 18th edition, APHA/AWWA/WEF, 1992
3. Terminology
3.1 Definitions:
3.1.1 For definitions of terms used in this test method, see Terminology E135.
3.1.2 meteoric water—rainfall that has the potential to contact materials and mobilize soluble constituents from mine rock at
a mining or mineral processing site.
1
This test method 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 1, 2007.2012. Published June 2007.July 2012. Originally approved in 2002. Last previous edition approved in 20022007 as E2242 – 027.
DOI: 10.1520/E2242-07.10.1520/E2242-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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
---------------------- Page: 1 ----------------------
E2242–12
3.1.3 mine rock—ore, waste rock or overburden excavated in order to recover metals or minerals during mining operations or
coarse processed ore such as heap leach spoils.
4. Summary of Test Method
4.1 The test material is placed in a plastic column and contacted with an equal weight of water during a 24 h leaching period.
The extract is collected and preserved for analysis of inorganic constituents.
5. Significance and Use
5.1 This test method is intended as a means for obtaining an extract from mine rock samples. The extract may be used to
estimate the final pH and release of certain constituents of the test sample under the laboratory conditions described in this test
method.
5.2 The pH of the extraction fluid used in this test method should reflect the pH of precipitation in the ge
...
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