ASTM E53-07
(Test Method)Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
SCOPE
1.1 This test method covers the chemical analysis of copper having minimum purity of 99.75 % to 99.95 %.
1.2 This test method covers the electrolytic determination of copper in chemical, electrolytic, and fire refined copper. In this method silver is deposited with the copper, and is reported as copper.
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. Specific precautionary statements are given in 8.4 and Section 9.
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Designation: E53 − 07
StandardTest Method for
Determination of Copper in Unalloyed Copper by
1
Gravimetry
This standard is issued under the fixed designation E53; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E255 Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition
1.1 This test method covers the chemical analysis of copper
E1024 Guide for Chemical Analysis of Metals and Metal
having minimum purity of 99.75 % to 99.95 %.
Bearing Ores by Flame Atomic Absorption Spectropho-
1.2 Thistestmethodcoverstheelectrolyticdeterminationof 3
tometry (Withdrawn 2004)
copper in chemical, electrolytic, and fire refined copper. In this
E1601 Practice for Conducting an Interlaboratory Study to
method silver is deposited with the copper, and is reported as
Evaluate the Performance of an Analytical Method
copper.
3. Terminology
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3.1 Definitions—For definitions of terms used in this test
responsibility of the user of this standard to establish appro-
method, refer to Terminology E135.
priate safety and health practices and determine the applica-
4. Summary of Test Method
bility of regulatory limitations prior to use. Specific precau-
tionary statements are given in 8.4 and Section 9.
4.1 The sample is dissolved in an acid mixture and the
copper is electrolytically deposited and weighed on a tared
2. Referenced Documents
platinum cathode. Copper remaining in the electrolyte is
2
determined by atomic absorption spectroscopy.
2.1 ASTM Standards:
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 This test method for the chemical analysis of copper is
primarily intended to test for compliance with compositional
erations for Chemical Analysis of Metals, Ores, and
Related Materials specifications. It is assumed that all who use this method will
be trained analysts capable of performing common laboratory
E121 Test Methods for Chemical Analysis of Copper-
3
Tellurium Alloys (Withdrawn 2010) proceduresskillfullyandsafely.Itisexpectedthatworkwillbe
performed in a properly equipped laboratory.
E135 Terminology Relating to Analytical Chemistry for
Metals, Ores, and Related Materials
6. Interferences
E173 Practice for Conducting Interlaboratory Studies of
Methods for Chemical Analysis of Metals (Withdrawn 6.1 Elements normally present in refined copper with a
3
1998) minimum purity of 99.85 % do not interfere.
6.2 Approximately one-half of any selenium or tellurium
present will co-deposit. If interfering amounts are present,
1
This test method is under the jurisdiction of ASTM Committee E01 on
proceed in accordance with Test Methods E121.
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
responsibility of Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, theirAlloys, and
7. Apparatus
Related Metals.
Current edition approved Nov. 15, 2007. Published December 2007. Originally
7.1 Electrodes for Electroanalysis:
approved in 1946. Last previous edition approved in 2002 as E53 – 02. DOI:
7.1.1 Electrodes—Recommended stationary type platinum
10.1520/E0053-07.
2
electrodes are described in 7.1.2 and 7.1.3. The surface of the
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
platinum electrodes should be smooth, clean, and bright to
Standards volume information, refer to the standard’s Document Summary page on
promote uniform deposition and good adherence. Deviations
the ASTM website.
3
fromtheexactsizeandshapeareallowable.Ininstanceswhere
The last approved version of this historical standard is referenced on
www.astm.org. it is desirable to decrease the time of deposition and agitation
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
E53−07
of the electrolyte is permissible, a generally available, rotating a 250-mLbeaker, add 10 mLof HNO (1 + 1) and cover.After
3
type of electrode may be employed. Cleaning of the electrode dissolution, warm to dispel fumes, cool, transfer to a 1-L
by sandblasting is not recommended. volumetric flask, dilute to volume, and mix.
7.1.2 Cathodes—Platinum cathodes may be either open or
8.2 Copper, Stand
...
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:E53–02 Designation:E53–07
Standard Test Method for
Determination of Copper in Unalloyed Copper by
1
Gravimetry
ThisstandardisissuedunderthefixeddesignationE 53;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope
1.1 This test method covers the chemical analysis of copper having minimum purity of 99.75 % to 99.95 %.
1.2 This test method covers the electrolytic determination of copper in chemical, electrolytic, and fire refined copper. In this
method silver is deposited with the copper, and is reported as copper.
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. Specific precautionary statements are given in Section 9 and Specific precautionary statements are given
in 8.4 and Section 9.
2. Referenced Documents
2
2.1 ASTM Standards:
E 29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E 50 Practices for Apparatus, Reagents, and Safety Considerations for Chemical Analysis of Metals, Ores, and Related
Materials
E 121 Test Methods for Chemical Analysis of Copper-Tellurium Alloys
E 135 Terminology Relating to Analytical Chemistry for Metals, Ores, and Related Materials
3
E 173 Practice for Conducting Interlaboratory Studies of Methods for Chemical Analysis of Metals
E 255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E 1024 Guide for Chemical Analysis of Metals and Metal Bearing Ores by Flame Atomic Absorption Spectrophotometry
E 1601 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 E 135.
4. Summary of Test Method
4.1 The sample is dissolved in an acid mixture and the copper is electrolytically deposited and weighed on a tared platinum
cathode. Copper remaining in the electrolyte is determined by atomic absorption spectroscopy.
5. Significance and Use
5.1 This test method for the chemical analysis of copper is primarily intended to test for compliance with compositional
specifications. It is assumed that all who use this method 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.
6. Interferences
6.1 Elements normally present in refined copper with a minimum purity of 99.85 % do not interfere.
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 E01.05 on Cu, Pb, Zn, Cd, Sn, Be, their Alloys and Related Metals.
Current edition approved . Published June 2003. Originally approved in 1946. Last previous edition approved in 1998 as E53–98.
Current edition approved Nov. 15, 2007. Published December 2007. Originally approved in 1946. Last previous edition approved in 2002 as E 53 – 02.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 14.02.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 03.05.
3
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
E53–07
6.2 Approximately one-half of any selenium or tellurium present will co-deposit. If interfering amounts are present, proceed in
accordance with Test Methods E 121.
7. Apparatus
7.1 Electrodes for Electroanalysis:
7.1.1 Electrodes—Platinum electrodes of the stationary type are recommended as described in —Recommended stationary type
platinum electrodes are described in 7.1.2 and 7.1.3, but strict adherence to the exact size and shape of the electrodes is not
mandatory.When agitation of the electrolyte is permissible in order to decrease the time of deposition, one of the types
...
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