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ASTM E1805-07

(Test Method)

Standard Test Method for Fire Assay Determination of Gold in Copper Concentrates by Gravimetry

Standard Test Method for Fire Assay Determination of Gold in Copper Concentrates by Gravimetry

SIGNIFICANCE AND USE
In the metallurgical process used in the mining industries, gold is often carried along with copper during the flotation concentration process. Metallurgical accounting, process control, and concentrate evaluation procedures for this type of material depend on an accurate, precise measurement of the gold in the copper concentrate. This test method is intended to be a reference method for metallurgical laboratories and a referee method to settle disputes in commercial transactions.
It is assumed that all who use this test method will be trained analysts capable of performing common laboratory operations skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory under appropriate quality control practices such as those described in Guide E 882.
SCOPE
1.1 This test method is for the determination of gold in copper concentrates in the concentration range from 0.2 to 17 g/g (0.007 to 0.500 Troy oz/short ton). Note 1 - The lower scope limit is set in accordance with Practice E 1601.
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 warning statements, see 11.3.1, 11.5.4, and 11.6.5.

General Information

Status
Historical
Publication Date
31-May-2007
ICS
71.040.50 - Physicochemical methods of analysis
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

Relations

Replaces
ASTM E1805-02 - Standard Test Method for Fire Assay Determination of Gold in Copper Concentrates by Gravimetry
Effective Date
01-Jun-2007

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ASTM E1805-07 - Standard Test Method for Fire Assay Determination of Gold in Copper Concentrates by Gravimetry
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: E1805 − 07
StandardTest Method for
Fire Assay Determination of Gold in Copper Concentrates
1
by Gravimetry
This standard is issued under the fixed designation E1805; 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 4. Summary of Test Method
1.1 This test method is for the determination of gold in 4.1 A test sample of copper concentrate is fused in a clay
copper concentrates in the concentration range from 0.2 to 17
crucible. The precious metals are reduced, collected in a lead
µg/g (0.007 to 0.500 Troy oz/short ton). button, and then cupelled to remove the lead. The remaining
doré bead is parted with nitric acid to remove the silver and
NOTE 1—The lower scope limit is set in accordance with Practice
other impurities from the gold. The gold then is cleaned, and
E1601.
weighed on a microbalance.
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5. Significance and Use
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- 5.1 In the metallurgical process used in the mining
bility of regulatory limitations prior to use. For specific industries, gold is often carried along with copper during the
warning statements, see 11.3.1, 11.5.4, and 11.6.5. flotation concentration process. Metallurgical accounting, pro-
cess control, and concentrate evaluation procedures for this
2. Referenced Documents
type of material depend on an accurate, precise measurement
2
2.1 ASTM Standards:
of the gold in the copper concentrate. This test method is
D1193 Specification for Reagent Water
intended to be a reference method for metallurgical laborato-
E29 Practice for Using Significant Digits in Test Data to
ries and a referee method to settle disputes in commercial
Determine Conformance with Specifications
transactions.
E50 Practices for Apparatus, Reagents, and Safety Consid-
5.2 It is assumed that all who use this test method will be
erations for Chemical Analysis of Metals, Ores, and
trained analysts capable of performing common laboratory
Related Materials
operationsskillfullyandsafely.Itisexpectedthattheworkwill
E135 Terminology Relating to Analytical Chemistry for
be performed in a properly equipped laboratory under appro-
Metals, Ores, and Related Materials
priate quality control practices such as those described in
E691 Practice for Conducting an Interlaboratory Study to
Guide E882.
Determine the Precision of a Test Method
E882 Guide for Accountability and Quality Control in the
6. Interferences
Chemical Analysis Laboratory
6.1 Elements normally found in copper concentrates do not
E1601 Practice for Conducting an Interlaboratory Study to
interfere. High concentrations of arsenic, antimony, tellurium,
Evaluate the Performance of an Analytical Method
bismuth, nickel, and platinum group metals (and, in some
3. Terminology
instances, copper), however, may interfere with the fusion and
cupellation steps.
3.1 For definitions of terms used in this test method, refer to
Terminology E135.
7. Apparatus
1
This test method is under the jurisdiction of ASTM Committee E01 on
7.1 Analytical Balance, capable of weighing to 0.1 g.
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
7.2 Semi-Microbalance, capable of weighing to 0.001 mg.
responsibility of Subcommittee E01.02 on Ores, Concentrates, and Related Metal-
lurgical Materials.
7.3 Assay Mold, 100-mL capacity.
Current edition approved June 1, 2007. Published June 2007. Originally
approved in 1996. Last previous edition approved in 2002 as E1805 - 02. DOI:
7.4 Cube or Cone Mixer, 1000-g capacity.
10.1520/E1805-07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 7.5 Cupel, magnesite or bone ash—40-g lead capacity.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
7.6 Dry Oven, forced air circulation with temperature
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. control, 104 °C.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
E1805 − 07
7.7 Fire Assay Bead Brush. 8.13 Cupel Correction Flux—Blend the following ingredi-
ents in the listed proportions:
7.8 Fire Assay Bead Pliers.
Borax glass 15 g
7.9 Fire Assay Clay Crucible, 20 to 30-g sample capacity.
Flour, white wheat 2 g
Lead oxide 30 g
7.10 Fire Assay Tongs, crucible and cupel.
Potassium carbonate 45 g
Silica 12 g
7.11 Fire
...

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ASTM E135-23a(Terminology)
Standard Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials

SIGNIFICANCE AND USE
3.1 Definitions given in Section 4 are intended for use in all standards on analytical chemistry for metals, ores, and related materials. The definitions should be used uniformly and consistently. The purpose of these definitions is to promote clear understanding and interpretation of the standards in which the terms are used.
SCOPE
1.1 This is a compilation of terms commonly used in analytical chemistry for metals, ores, and related materials. Terms that are generally understood or defined adequately in other readily available sources are either not included or their sources are identified.  
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1.3 The date of last reapproval or revision of a term is in parentheses at the end of the definition.  
1.4 Definitions identical to those published by another standards organization or ASTM committee are identified with the name of the organization and the identifying document or ASTM committee and standard.  
1.5 Definitions specific to a particular field (such as emission spectrometry) are identified with an italicized introductory phrase.  
1.6 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.

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SIGNIFICANCE AND USE
4.1 This practice covers all aspects of sampling and preparing steel and iron for chemical analysis as defined in Test Methods, Practices, and Definitions A751 and Specification A48/A48M. Such subjects as sampling location and the sampling of lots are defined.  
4.2 This practice includes most requirements for sampling steel and iron for analysis. Standard test methods that reference this practice need contain only special modifications and exceptions.  
4.3 All who use these procedures should be trained samplers capable of performing common sampling operations skillfully and safely. Only proper sampling equipment should be used.
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1.1 This practice covers the sampling of all grades of steel, both cast and wrought, and all types (grades) of cast irons and blast furnace iron for chemical and spectrochemical determination of composition. This practice is similar to ISO 14284.  
1.2 This practice is divided into the following sections.    
Sections  
Requirements for Sampling and Sample Preparation  
6  
General  
6.1  
Sample  
6.2  
Selection of a Sample  
6.3  
Preparation of a Sample  
6.4  
Liquid Iron for Steelmaking and Pig Iron Production  
7  
General  
7.1  
Spoon Sampling  
7.2  
Probe Sampling  
7.3  
Preparation of a Sample for Analysis  
7.4  
Liquid Iron for Cast Iron Production  
8  
General  
8.1  
Spoon Sampling  
8.2  
Probe Sampling  
8.3  
Preparation of a Sample for Analysis  
8.4  
Sampling and Sample Preparation for the Determination of  
8.5  
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Liquid Steel for Steel Production  
9  
General  
9.1  
Probe Sampling  
9.2  
Spoon Sampling  
9.3  
Preparation of a Sample for Analysis  
9.4  
Sampling and Sample Preparation for the Determination  
9.5  
of Oxygen  
Sampling and Sample Preparation for the Determination  
9.6  
of Hydrogen  
Pig Irons  
10  
General  
10.1  
Increment Sampling  
10.2  
Preparation of a Sample for Analysis  
10.3  
Cast Iron Products  
11  
General  
11.1  
Sampling and Sample Preparation  
11.2  
Sections  
Steel Products  
12  
General  
12.1  
Selection of a Laboratory Sample or a Sample for  
12.2  
Analysis from a Cast Product  
Selection of a Laboratory Sample or a Sample for  
12.3  
Analysis from a Wrought Product  
Preparation of a Sample for Analysis  
12.4  
Sampling of Leaded Steel  
12.5  
Sampling and Sample Preparation for the Determination  
12.6  
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Sampling and Sample Preparation for the Determination  
12.7  
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Keywords  
13  
Annexes  
Sampling Probes for Use with Liquid Iron and Steel  
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1.3 The values stated in SI units are regarded as standard. No other units of measurement are included in this standard.  
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Standard Test Method for Analysis of Cast Iron by Spark Atomic Emission Spectrometry

SIGNIFICANCE AND USE
5.1 The chemical composition of cast iron alloys shall be determined accurately in order to ensure the desired metallurgical properties. This procedure is suitable for manufacturing control and inspection testing.
SCOPE
1.1 This test method covers the analysis of cast iron by spark atomic emission spectrometry for the following elements in the ranges shown (Note 1):
Ranges, %  
Elements  
Applicable Range, %  
Quantitative Range, %A  
Carbon  
1.9 to 3.8  
1.90 to 3.8  
Chromium  
0 to 2.0  
0.025 to 2.0  
Copper  
0 to 0.75  
0.015 to 0.75  
Manganese  
0 to 1.8  
0.03 to 1.8  
Molybdenum  
0 to 1.2  
0.01 to 1.2  
Nickel  
0 to 2.0  
0.02 to 2.0  
Phosphorus  
0 to 0.4  
0.005 to 0.4  
Silicon  
0 to 2.5  
0.15 to 2.5  
Sulfur  
0 to 0.08  
0.01 to 0.08  
Tin  
0 to 0.14  
0.004 to 0.14  
Titanium  
0 to 0.12  
0.003 to 0.12  
Vanadium  
0 to 0.22  
0.008 to 0.22
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5.1 This test method for the chemical analysis of titanium and titanium alloys is primarily intended to test material for compliance with specifications of chemical composition such as those under the jurisdiction of ASTM Committee B10. It may also be used to test compliance with other specifications that are compatible with the test method.  
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Element  
Application
Range (wt.%)  
Quantitative
Range (wt.%)  
Aluminum  
0–8  
0.009 to 8.0  
Boron  
0–0.04  
0.0008 to 0.01  
Cobalt  
0-1  
0.006 to 0.1  
Chromium  
0–5  
0.005 to 4.0  
Copper  
0–0.6  
0.004 to 0.5  
Iron  
0–3  
0.004 to 3.0  
Manganese  
0–0.04  
0.003 to 0.01  
Molybdenum  
0–8  
0.004 to 6.0  
Nickel  
0–1  
0.001 to 1.0  
Niobium  
0-6  
0.008 to 0.1  
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0.02 to 0.20  
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Yttrium  
0–0.04  
0.001 to 0.004  
Zirconium  
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1.4 Units—The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.  
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1.6 This international standard was developed in accordance with internationally recognized principle...

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ASTM E1898-21(Test Method)
Standard Test Method for Determination of Silver in Copper Concentrates by Flame Atomic Absorption Spectrometry

SIGNIFICANCE AND USE
5.1 In the primary metallurgical processes used by the mineral processing industry for copper bearing ores, copper and silver associated with sulfide mineralization are concentrated by the process of flotation for recovery of the metals.  
5.2 This test method is a comparative method and is intended to be a referee method for compliance with compositional specifications for metal content or to monitor processes.  
5.3 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 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 silver in the range of 13 μg/g to 500 μg/g by acid dissolution of the silver and measurement by atomic absorption spectrometry. Copper concentrates are internationally traded within the following content ranges:    
Element  
Unit  
Content Range  
Aluminum  
%  
0.05  
to  
2.50  
Antimony  
%  
0.0001  
to  
4.50  
Arsenic  
%  
0.01  
to  
0.50  
Barium  
%  
0.003  
to  
0.10  
Bismuth  
%  
0.001  
to  
0.16  
Cadmium  
%  
0.0005  
to  
0.04  
Calcium  
%  
0.05  
to  
4.00  
Carbon  
%  
0.10  
to  
0.90  
Chlorine  
%  
0.001  
to  
0.006  
Chromium  
%  
0.0001  
to  
0.10  
Cobalt  
%  
0.0005  
to  
0.20  
Copper  
%  
10.0  
to  
44.0  
Fluorine  
%  
0.001  
to  
0.10  
Gold  
μg/g  
1.40  
to  
100.0  
Iron  
%  
12.0  
to  
30.0  
Lead  
%  
0.01  
to  
1.40  
Magnesium  
%  
0.02  
to  
2.00  
Manganese  
%  
0.009  
to  
0.10  
Mercury  
μg/g  
0.05  
to  
50.0  
Molybdenum  
%  
0.002  
to  
0.25  
Nickel  
%  
0.0001  
to  
0.08  
Silicon  
%  
0.40  
to  
20.0  
Silver  
μg/g  
18.0  
to  
8000  
Sulfur  
%  
10.0  
to  
36.0  
Tin  
%  
0.004  
to  
0.012  
Zinc  
%  
0.005  
to  
4.30  
1.2 The values stated in SI units are to be regarded as 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, 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.

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ASTM E1805-21(Test Method)
Standard Test Method for Determination of Gold in Copper Concentrates by Fire Assay Gravimetry

SIGNIFICANCE AND USE
5.1 In the metallurgical process used in the mining industries, gold is often carried along with copper during the flotation concentration process. Metallurgical accounting, process control, and concentrate evaluation procedures for this type of material depend on an accurate, precise measurement of the gold in the copper concentrate. This test method is intended to be a reference method for metallurgical laboratories and a referee method to settle disputes in commercial transactions. It is also a definitive method intended to test materials for compliance with compositional specifications and to provide data for certification of reference materials. It is essential that each performance of the method be validated by applying it to appropriate reference materials at the same time and in the same manner as it is applied to the unknowns.  
5.2 It is assumed that all who use this test method will be trained analysts capable of performing skillfully and safely. It is expected that the 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 is for the determination of gold in copper concentrates in the content range from 0.2 μg/g to 17 μg/g.
Note 1: The lower scope limit is set in accordance with Practice E1601.  
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ASTM
ASTM E508-21(Test Method)
Standard Test Method for Determination of Calcium and Magnesium in Iron Ores by Flame Atomic Absorption Spectrometry

SIGNIFICANCE AND USE
5.1 This test method is intended as a referee method for compliance with compositional specifications for impurity content. 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. Follow appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This test method covers the determination of calcium and magnesium in iron ores, concentrates, and agglomerates in the mass fraction (%) range from 0.05 % to 5 % of calcium and 0.05 % to 3 % of magnesium.  
1.2 The values stated in SI units are to be regarded as 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, 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.

  • Standard
    4 pages
    English language
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  • Standard
    4 pages
    English language
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ASTM
ASTM E507-21(Test Method)
Standard Test Method for Determination of Aluminum in Iron Ores by Flame Atomic Absorption Spectrometry

SIGNIFICANCE AND USE
5.1 This test method is intended as a referee method for compliance with compositional specifications for impurity content. 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. Follow appropriate quality control practices such as those described in Guide E882.
SCOPE
1.1 This test method covers the determination of aluminum in iron ores, concentrates, and agglomerates in the mass fraction (%) range from 0.1 to 5.  
1.2 The values stated in SI units are to be regarded as 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, 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.

  • Standard
    4 pages
    English language
    sale 15% off
  • Standard
    4 pages
    English language
    sale 15% off