ASTM D7572-11a
(Guide)Standard Guide for Recovery of Aqueous Cyanides by Extraction from Mine Rock and Soil After Remediation of Process Releases
Standard Guide for Recovery of Aqueous Cyanides by Extraction from Mine Rock and Soil After Remediation of Process Releases
SIGNIFICANCE AND USE
This practice is intended as a means for obtaining an extract from mine rock and soil samples measure cyanide concentrations. Cyanide is analyzed in mine rock and soil extracts for measurement of cyanide concentration; however, improper sample collection and extraction can result in significant positive or negative bias, potentially resulting in unnecessary permit violations or undetected cyanide releases into the environment.
This practice is designed to mobilize aqueous cyanides present in the solids, so that the resulting extract can be used to assess leachate that could potentially be produced from remediated mine rock or soil in the field.
This practice is not intended to simulate actual site leaching conditions.
This practice produces extracts that are amenable to the determination of 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 practice uses a comparative test method and is intended for use as a routine method for monitoring remediated mine rock and soils after process releases and remediation. It is assumed that all who use this practice will be trained analysts capable of performing it skillfully and safely. It is expected that work will be performed in a properly equipped laboratory applying appropriate quality control practices such as those described in Guide D3856.
SCOPE
1.1 This guide is applicable for the collection, extraction and preservation of extracts from mine rock and soil samples for the analysis of cyanide in the extracts. Responsibilities of field sampling personnel and the laboratory are indicated.
1.2 The sampling, preservation and extraction procedures described in this practice are recommended for the analysis of total cyanide, available cyanide, weak acid dissociable cyanide, and free cyanide by Test Methods D2036, D4282, D4374, D6888, D6994, D7237, and D7284. The information supplied in this practice can also be applied to other analytical methods for cyanide, for example, US EPA Method 335.4.
1.3 The values stated in SI units are to be regarded as 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: D7572 − 11a
StandardGuide for
Recovery of Aqueous Cyanides by Extraction from Mine
1
Rock and Soil After Remediation of Process Releases
This standard is issued under the fixed designation D7572; 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* D4374 Test Methods for Cyanides in Water—Automated
Methods for Total Cyanide, Weak Acid Dissociable
1.1 This guide is applicable for the collection, extraction
Cyanide, and Thiocyanate
and preservation of extracts from mine rock and soil samples
D4840 Guide for Sample Chain-of-Custody Procedures
for the analysis of cyanide in the extracts. Responsibilities of
D4841 Practice for Estimation of Holding Time for Water
field sampling personnel and the laboratory are indicated.
Samples Containing Organic and Inorganic Constituents
1.2 The sampling, preservation and extraction procedures
D5847 Practice for Writing Quality Control Specifications
described in this practice are recommended for the analysis of
for Standard Test Methods for Water Analysis
total cyanide, available cyanide, weak acid dissociable
D6888 Test Method for Available Cyanide with Ligand
cyanide, and free cyanide by Test Methods D2036, D4282,
Displacement and Flow InjectionAnalysis (FIA) Utilizing
D4374, D6888, D6994, D7237, and D7284. The information
Gas Diffusion Separation and Amperometric Detection
supplied in this practice can also be applied to other analytical
D6994 Test Method for Determination of Metal Cyanide
methods for cyanide, for example, US EPA Method 335.4.
Complexes in Wastewater, Surface Water, Groundwater
and Drinking Water Using Anion Exchange Chromatog-
1.3 The values stated in SI units are to be regarded as
standard. raphy with UV Detection
D6696 Guide for Understanding Cyanide Species
1.4 This standard does not purport to address all of the
D7237 Test Method for Free Cyanide with Flow Injection
safety concerns, if any, associated with its use. It is the
Analysis (FIA) Utilizing Gas Diffusion Separation and
responsibility of the user of this standard to establish appro-
Amperometric Detection
priate safety and health practices and determine the applica-
D7284 Test Method for Total Cyanide in Water by Micro
bility of regulatory limitations prior to use.
Distillation followed by Flow InjectionAnalysis with Gas
Diffusion Separation and Amperometric Detection
2. Referenced Documents
D7365 Practice for Sampling, Preservation and Mitigating
2
2.1 ASTM Standards:
Interferences in Water Samples for Analysis of Cyanide
D1129 Terminology Relating to Water
D7511 Test Method for Total Cyanide by Segmented Flow
D1193 Specification for Reagent Water
InjectionAnalysis, In-Line Ultraviolet Digestion andAm-
D1293 Test Methods for pH of Water
perometric Detection
D2036 Test Methods for Cyanides in Water
3
2.2 U.S. EPA Methods:
D3694 Practices for Preparation of Sample Containers and
EPA OIA-1677 Available Cyanide in Water
for Preservation of Organic Constituents
EPA Method 335.2 Cyanide, Total (Titrimetric; Spectropho-
D3856 Guide for Management Systems in Laboratories
tometric)
Engaged in Analysis of Water
EPA Method 335.4 Determination of Total Cyanide by
D4282 Test Method for Determination of Free Cyanide in
Semi-Automated Colorimetry
Water and Wastewater by Microdiffusion
3. Terminology
3.1 Definitions—For definitions of terms used in this
1
This practice is under the jurisdiction of ASTM Committee D19 on Water and
practice, refer to Terminology D1129 and Guide D6696.
is the direct responsibility of Subcommittee D19.06 on Methods for Analysis for
Organic Substances in Water.
3.2 Definitions of Terms Specific to This Standard:
Current edition approved June 15, 2011. Published July 2011. Last previous
edition published 2009 as D7572–09. DOI: 10.1520/D7572-11A.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from United States Environmental Protection Agency (EPA), Ariel
Standards volume information, refer to the standard’s Document Summary page on Rios Bldg., 1200 Pennsylvania Ave., NW, Washington, DC 20460, http://
the ASTM website. www.epa.gov.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D7572 − 11a
3.2.1 mine rock, n—ore, waste rock or overburden exca- 6.2 Unless otherwise specified, samples must be extracted
vated in order to construct an ore-processing site, or recov
...
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:D7572–11 Designation:D7572–11a
Standard Guide for
Recovery of Aqueous Cyanides by Extraction from Mine
1
Rock and Soil After Remediation of Process Releases
This standard is issued under the fixed designation D7572; 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 guide is applicable for the collection, extraction and preservation of extracts from mine rock and soil samples for the
analysis of cyanide in the extracts. Responsibilities of field sampling personnel and the laboratory are indicated.
1.2 The sampling, preservation and extraction procedures described in this practice are recommended for the analysis of total
cyanide, available cyanide, weak acid dissociable cyanide, and free cyanide by Test Methods D2036, D4282, D4374, D6888,
D6994, D7237, and D7284. The information supplied in this practice can also be applied to other analytical methods for cyanide,
for example, US EPA Method 335.4.
1.3 The values stated in SI units are to be regarded as 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:
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D1293 Test Methods for pH of Water
D2036 Test Methods for Cyanides in Water
D3694 Practices for Preparation of Sample Containers and for Preservation of Organic Constituents
D3856 Guide for Good Laboratory Practices in Laboratories Engaged in Sampling and Analysis of Water
D4282 Test Method for Determination of Free Cyanide in Water and Wastewater by Microdiffusion
D4374 Test Methods for Cyanides in WaterAutomated Methods for Total Cyanide, Weak Acid Dissociable Cyanide, and
Thiocyanate
D4840 Guide for Sample Chain-of-Custody Procedures
D4841 Practice for Estimation of Holding Time for Water Samples Containing Organic and Inorganic Constituents
D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
D6888 Test Method for Available Cyanide with Ligand Displacement and Flow Injection Analysis (FIA) Utilizing Gas
Diffusion Separation and Amperometric Detection
D6994 Test Method for Determination of Metal Cyanide Complexes in Wastewater, Surface Water, Groundwater and Drinking
Water Using Anion Exchange Chromatography with UV Detection
D6696 Guide for Understanding Cyanide Species
D7237 TestMethodforFreeCyanidewithFlowInjectionAnalysis(FIA)UtilizingGasDiffusionSeparationandAmperometric
Detection
D7284 Test Method for Total Cyanide in Water by Micro Distillation followed by Flow InjectionAnalysis with Gas Diffusion
Separation and Amperometric Detection
D7365 Practice for Sampling, Preservation and Mitigating Interferences in Water Samples for Analysis of Cyanide
D7511 Test Method forTotal Cyanide by Segmented Flow InjectionAnalysis, In-Line Ultraviolet Digestion andAmperometric
Detection
1
This practice is under the jurisdiction ofASTM Committee D19 on Water and is the direct responsibility of Subcommittee D19.06 on Methods forAnalysis for Organic
Substances in Water.
Current edition approved MayJune 15, 2011. Published AugustJuly 2011. Last previous edition published 2009 as D7572–09. DOI: 10.1520/D7572-11A.
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.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D7572–11a
3
2.2 U.S. EPA Methods:
EPA OIA-1677 Available Cyanide in Water
EPA Method 335.2 Cyanide, Total (Titrimetric; Spectrophotometric)
EPA Method 335.4 Determination of Total Cyanide by Semi-Automated Colorimetry
3. Terminology
3.1 Definitions: For definitions of terms used in this practice, refer to Terminology D1129 and Guide D6696.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 mine rock, n—ore, waste rock o
...
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