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ASTM E1568-13

(Test Method)

Standard Test Method for Determination of Gold in Activated Carbon by Fire Assay Gravimetry

Standard Test Method for Determination of Gold in Activated Carbon by Fire Assay Gravimetry

SIGNIFICANCE AND USE
5.1 In the primary metallurgical processes used by the mineral processing industry for gold bearing ores, gold is extracted with alkaline cyanide solutions and adsorbed onto activated carbon for recovery of the metal. Metallurgical accounting, process control, and ore evaluation procedures for this type of mineral processing plant depend on accurate, precise, and prompt measurements of gold concentrations in the activated carbon.  
5.2 This test method for gold in activated carbon is intended primarily as a referee method to test such materials for metal content. It is assumed that those who use these procedures will be trained analysts capable of performing common laboratory procedures 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.
SCOPE
1.1 This test method covers the determination of gold in activated carbon by fire assay collection and gravimetric measurement. It covers the range of 15 μg/g to 5000 μg/g gold.  
1.2 The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.  
1.3 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. For specific hazards statements, see Section 9 and 11.2.3-11.2.5, 11.3.4, and 11.3.4.

General Information

Status
Historical
Publication Date
31-Mar-2013
ICS
77.120.99 - Other non-ferrous metals and their alloys
Technical Committee
E01 - Analytical Chemistry for Metals, Ores, and Related Materials
Drafting Committee
E01.02 - Ores, Concentrates, and Related Metallurgical Materials
Current Stage
Ref Project

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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1568 − 13
Standard Test Method for
Determination of Gold in Activated Carbon by Fire Assay
1
Gravimetry
This standard is issued under the fixed designation E1568; 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 Methods for Chemical Analysis of Metals (Withdrawn
3
1998)
1.1 This test method covers the determination of gold in
E276 TestMethodforParticleSizeorScreenAnalysisatNo.
activated carbon by fire assay collection and gravimetric
4 (4.75-mm) Sieve and Finer for Metal-Bearing Ores and
measurement. It covers the range of 15 µg/g to 5000 µg/g gold.
Related Materials
1.2 The values stated in SI units are to be regarded as the
E300 Practice for Sampling Industrial Chemicals
standard. No other units of measurement are included in this
E882 Guide for Accountability and Quality Control in the
standard.
Chemical Analysis Laboratory
1.3 This standard does not purport to address all of the
E1601 Practice for Conducting an Interlaboratory Study to
safety concerns, if any, associated with its use. It is the Evaluate the Performance of an Analytical Method
responsibility of the user of this standard to establish appro-
3. Terminology
priate safety and health practices and determine the applica-
bilityofregulatorylimitationspriortouse.Forspecifichazards
3.1 Definitions—For definitions of terms used in this test
statements, see Section 9 and 11.2.3-11.2.5, 11.3.4, and 11.3.4.
method, refer to Terminology E135.
2. Referenced Documents 4. Summary of Test Method
2
2.1 ASTM Standards: 4.1 The weighed test sample is ignited and fused with fire
D2862 Test Method for Particle Size Distribution of Granu- assay flux in a clay crucible. The lead metal from the fusion is
lar Activated Carbon separated and the precious metals concentrated by oxidation
D2866 Test Method for Total Ash Content of Activated and adsorption of the lead on a cupel, the silver is parted with
nitric acid, and the gold is annealed and weighed on a
Carbon
D2867 Test Methods for Moisture in Activated Carbon microbalance.
E29 Practice for Using Significant Digits in Test Data to
5. Significance and Use
Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Consid- 5.1 In the primary metallurgical processes used by the
erations for Chemical Analysis of Metals, Ores, and mineral processing industry for gold bearing ores, gold is
Related Materials
extracted with alkaline cyanide solutions and adsorbed onto
E135 Terminology Relating to Analytical Chemistry for activated carbon for recovery of the metal. Metallurgical
Metals, Ores, and Related Materials
accounting, process control, and ore evaluation procedures for
E173 Practice for Conducting Interlaboratory Studies of this type of mineral processing plant depend on accurate,
precise, and prompt measurements of gold concentrations in
the activated carbon.
1
This test method is under the jurisdiction of ASTM Committee E01 on
5.2 This test method for gold in activated carbon is intended
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
primarily as a referee method to test such materials for metal
lurgical Materials.
content. It is assumed that those who use these procedures will
Current edition approved April 1, 2013. Published June 2013. Originally
ε1 be trained analysts capable of performing common laboratory
approved in 1993. Last previous edition approved in 2008 as E1568 – 03 (2008) .
DOI: 10.1520/E1568-13. proceduresskillfullyandsafely.Itisexpectedthatworkwillbe
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
1

---------------------- Page: 1 ----------------------
E1568 − 13
performed in a properly equipped laboratory and that proper 8.7 SiO —Silicon dioxide powder, with gold content less
2
waste disposal procedures will be followed. Appropriate qual- than 0.001 µg/g.
ity control practices must be followed, such as those described
8.8 Silver Foil—99.9 % minimum, with gold content less
in Guide E882.
than 0.001 µg/g.
8.9 Na CO —Sodium carbonate powder, with gold content
2 3
6. Interferences
less than 0.001 µg/g.
6.1 Elements normally found in ore p
...

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.
´1
Designation: E1568 − 03 (Reapproved 2008) E1568 − 13
Standard Test Method for
Determination of Gold in Activated Carbon by Fire Assay
1
Gravimetry
This standard is issued under the fixed designation E1568; 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
ε NOTE—Warning notes were editorially revised throughout in November 2008.
1. Scope
1.1 This test method covers the determination of gold in activated carbon by fire assay collection and gravimetric measurement.
It covers the range of 15 μg15 μg/g to 5000 μg/g gold.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound values given in parentheses are for
information only and are not considered No other units of measurement are included in this standard.
1.3 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. For specific hazards statements, see Section 9 and 11.2.3-11.2.5, 11.3.4, and 11.3.4.
2. Referenced Documents
2
2.1 ASTM Standards:
D2862 Test Method for Particle Size Distribution of Granular Activated Carbon
D2866 Test Method for Total Ash Content of Activated Carbon
D2867 Test Methods for Moisture in Activated Carbon
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related Materials
E135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
3
E173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals (Withdrawn 1998)
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
E300 Practice for Sampling Industrial Chemicals
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
3. Terminology
3.1 Definitions—For definitions of terms used in this test method, refer to Terminology E135.
4. Summary of Test Method
4.1 The weighed test sample is ignited and fused with fire assay flux in a clay crucible. The lead metal from the fusion is
separated and the precious metals concentrated by oxidation and adsorption of the lead on a cupel, the silver is parted with nitric
acid, and the gold is annealed and weighed on a microbalance.
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 Nov. 1, 2008April 1, 2013. Published December 2008June 2013. Originally approved in 1993. Last previous edition approved in 20032008 as
ε1
E1568 – 03.E1568 – 03 (2008) . DOI: 10.1520/E1568-03R08E01.10.1520/E1568-13.
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 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 ----------------------
E1568 − 13
5. Significance and Use
5.1 In the primary metallurgical processes used by the mineral processing industry for gold bearing ores, gold is extracted with
alkaline cyanide solutions and adsorbed onto activated carbon for recovery of the metal. Metallurgical accounting, process control,
and ore evaluation procedures for this type of mineral processing plant depend on accurate, precise, and prompt measurements of
gold concentrations in the activated carbon.
5.2 This test method for gold in activated carbon is intended primarily as a referee method to test such materials for metal
content. It is assumed that those who use these procedures will be trained analysts capable of performing c
...

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ASTM
ASTM B717-23(Specification)
Standard Specification for Refined Ruthenium

ABSTRACT
This specification covers refined ruthenium as sponge and powder in one grade as follows: Grade 99.80 and Grade 99.90. The material may be produced by any refining process that yields a product capable of meeting the chemical requirements of this specification. The material should conform to the requirements for chemical composition as prescribed.
SCOPE
1.1 This specification covers refined ruthenium as sponge and powder in one grade as follows:  
1.1.1 Grade 99.80—Ruthenium having a purity of 99.80 %.  
1.1.2 Grade 99.90—Ruthenium having a purity of 99.90 %.  
Note 1: For the purposes of determining conformance with this specification, an observed value obtained from analysis shall be rounded to the nearest unit in the last right-hand place of figures used in expressing the limiting value in accordance with the rounding method of Practice E29.  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.4 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.

  • Technical specification
    2 pages
    English language
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  • Technical specification
    2 pages
    English language
    sale 15% off