ASTM E53-02

Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

SIGNIFICANCE AND USE
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.
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 8.4.

General Information

• Status: Historical
• Publication Date: 09-Dec-2002
• ICS: 77.040.30 - Chemical analysis of metals
• ICS: 77.120.30 - Copper and copper alloys
• Technical Committee: E01 - Analytical Chemistry for Metals, Ores, and Related Materials
• Drafting Committee: E01.05 - Cu, Pb, Zn, Cd, Sn, Be, Precious Metals, their Alloys, and Related Metals

Relations

• Replaces: ASTM E53-98 - Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
• Effective Date: 10-Dec-2002
• Replaced By: ASTM E53-07 - Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
• Effective Date: 15-Nov-2007
• Referred By: ASTM B306-20 - Standard Specification for Copper Drainage Tube (DWV)
• Effective Date: 10-Dec-2002
• Referred By: ASTM B447-12a(2021) - Standard Specification for Welded Copper Tube
• Effective Date: 10-Dec-2002
• Referred By: ASTM F468-23 - Standard Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General Use
• Effective Date: 10-Dec-2002
• Referred By: ASTM B187/B187M-20 - Standard Specification for Copper, Bus Bar, Rod, and Shapes and General Purpose Rod, Bar, and Shapes
• Effective Date: 10-Dec-2002
• Referred By: ASTM B115-10(2021) - Standard Specification for Electrolytic Copper Cathode
• Effective Date: 10-Dec-2002
• Referred By: ASTM B280-20 - Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service
• Effective Date: 10-Dec-2002
• Referred By: ASTM B248-22 - Standard Specification for General Requirements for Wrought Copper and Copper-Alloy Plate, Sheet, Strip, and Rolled Bar
• Effective Date: 10-Dec-2002
• Referred By: ASTM B903-15(2022) - Standard Specification for Seamless Copper Heat Exchanger Tubes With Internal Enhancement
• Effective Date: 10-Dec-2002
• Referred By: ASTM B216-22 - Standard Specification for Tough-Pitch Fire-Refined Copper—Refinery Shapes
• Effective Date: 10-Dec-2002
• Referred By: ASTM B974/B974M-16(2021) - Standard Specification for Free-Cutting Bismuth Brass Rod, Bar and Wire
• Effective Date: 10-Dec-2002
• Referred By: ASTM F467-13(2018) - Standard Specification for Nonferrous Nuts for General Use
• Effective Date: 10-Dec-2002
• Referred By: ASTM B543/B543M-18 - Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube
• Effective Date: 10-Dec-2002
• Referred By: ASTM B1003-16 - Standard Specification for Seamless Copper Tube for Linesets
• Effective Date: 10-Dec-2002

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:E53–02
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 E 1601 Practice for Conducting an Interlaboratory Study to
4
Evaluate the Performance of an Analytical Method
1.1 This test method covers the chemical analysis of copper
having minimum purity of 99.75 % to 99.95 %.
3. Terminology
1.2 Thistestmethodcoverstheelectrolyticdeterminationof
3.1 Definitions—For definitions of terms used in this test
copper in chemical, electrolytic, and fire refined copper. In this
method, refer to Terminology E 135.
method silver is deposited with the copper, and is reported as
copper.
4. Summary of Test Method
1.3 This standard does not purport to address all of the
4.1 The sample is dissolved in an acid mixture and the
safety concerns, if any, associated with its use. It is the
copper is electrolytically deposited and weighed on a tared
responsibility of the user of this standard to establish appro-
platinum cathode. Copper remaining in the electrolyte is
priate safety and health practices and determine the applica-
determined by atomic absorption spectroscopy.
bility of regulatory limitations prior to use. Specific precau-
tionary statements are given in Section 9 and 8.4.
5. Significance and Use
5.1 This test method for the chemical analysis of copper is
2. Referenced Documents
primarily intended to test for compliance with compositional
2.1 ASTM Standards:
specifications. It is assumed that all who use this method will
E29 Practice for Using Significant Digits in Test Data to
2 be trained analysts capable of performing common laboratory
Determine Conformance with Specifications
proceduresskillfullyandsafely.Itisexpectedthatworkwillbe
E50 Practices forApparatus, Reagents, and Safety Consid-
performed in a properly equipped laboratory.
erations for Chemical Analysis of Metals, Ores, and
Related Materials
6. Interferences
E 121 Test Methods for Chemical Analysis of Copper-
6.1 Elements normally present in refined copper with a
3
Tellurium Alloys
minimum purity of 99.85 % do not interfere.
E 135 Terminology Relating to Analytical Chemistry for
6.2 Approximately one-half of any selenium or tellurium
3
Metals, Ores, and Related Materials
present will codeposit. If interfering amounts are present,
E 173 Practice for Conducting Interlaboratory Studies of
proceed in accordance with Test Methods E 121.
3
Methods for Chemical Analysis of Metals
E 255 Practice for Sampling Copper and CopperAlloys for
7. Apparatus
3
the Determination of Chemical Composition
7.1 Electrodes for Electroanalysis:
E 1024 Guide for Chemical Analysis of Metals and Metal
7.1.1 Electrodes—Platinumelectrodesofthestationarytype
Bearing Ores by Flame Atomic Absorption Spectropho-
are recommended as described in 7.1.2 and 7.1.3, but strict
4
tometry
adherence to the exact size and shape of the electrodes is not
mandatory. When agitation of the electrolyte is permissible in
1
order to decrease the time of deposition, one of the types of
This test method is under the jurisdiction of ASTM Committee E01 on
Analytical Chemistry for Metals, Ores and Related Materials and is the direct
rotating forms of electrodes, generally available, may be
responsibility of Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, theirAlloys and
employed. The surface of the platinum electrodes should be
Related Metals.
smooth, clean, and bright to promote uniform deposition and
Current edition approved Dec. 10, 2002. Published June 2003. Originally
good adherence. Sandblasting is not recommended.
approved in 1946. Last previous edition approved in 1998 as E 53 – 98.
2
Annual Book of ASTM Standards, Vol 14.02.
3
Annual Book of ASTM Standards, Vol 03.05.
4
Annual Book of ASTM Standards, Vol 03.06.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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E53–02
7.1.2 Cathodes—Platinum cathodes may be formed either 8. Reagents
from plain or perforated sheets or from wire gauze, and may be
8.1 Copper, Standard Solution A (1 mL = 1.0 mg Cu)—
either open or closed cylinders. Gauze cathodes are recom-
Transfer 1.000 g of electrolytic copper (purity: 99.9 % min) to
mended, and shall be made preferably from 50-mesh gauze
a 250-mL beaker, add 10 mL of HNO (1+1) and cover. After
3
woven from wire approximately 0.21 mm (0.0085 in.) in
dissolution, warm to dispel fumes, co
...