ASTM E2824-18a
(Test Method)Standard Test Method for Determination of Beryllium in Copper-Beryllium Alloys by Phosphate Gravimetry
Standard Test Method for Determination of Beryllium in Copper-Beryllium Alloys by Phosphate Gravimetry
SIGNIFICANCE AND USE
5.1 This test method for the chemical analysis of metals and alloys is primarily intended to test such materials for compliance with compositional specifications. It is assumed that all who use these test methods 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 describes the determination of beryllium in copper-beryllium alloys in percentages from 0.1 % to 3.0 % by phosphate gravimetry.
1.2 Units—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. Specific hazard statements are given in Section 9.
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.
General Information
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Designation: E2824 − 18a
Standard Test Method for
Determination of Beryllium in Copper-Beryllium Alloys by
1
Phosphate Gravimetry
This standard is issued under the fixed designation E2824; 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 Scope Methods for Chemical Analysis of Metals (Withdrawn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 describes the determination of beryl-
E255 Practice for Sampling Copper and Copper Alloys for
lium in copper-beryllium alloys in percentages from 0.1 % to
the Determination of Chemical Composition
3.0 % by phosphate gravimetry.
E1601 Practice for Conducting an Interlaboratory Study to
1.2 Units—The values stated in SI units are to be regarded
Evaluate the Performance of an Analytical Method
as standard. No other units of measurement are included in this
standard.
3. Terminology
1.3 This standard does not purport to address all of the
3.1 For definitions of terms used in this method, refer to
safety concerns, if any, associated with its use. It is the Terminology E135.
responsibility of the user of this standard to establish appro-
4. Summary of Test Method
priate safety, health, and environmental practices and deter-
mine the applicability of regulatory limitations prior to use.
4.1 Beryllium is precipitated as the phosphate, which is
Specific hazard statements are given in Section 9.
filtered, ignited, and weighed as beryllium pyrophosphate.
1.4 This international standard was developed in accor-
Interfering elements, if present, may be complexed with
dance with internationally recognized principles on standard-
(ethylenedinitrilo) tetraacetate solution.
ization established in the Decision on Principles for the
Development of International Standards, Guides and Recom-
5. Significance and Use
mendations issued by the World Trade Organization Technical
5.1 This test method for the chemical analysis of metals and
Barriers to Trade (TBT) Committee.
alloys is primarily intended to test such materials for compli-
ance with compositional specifications. It is assumed that all
2. Referenced Documents
who use these test methods will be trained analysts capable of
2
2.1 ASTM Standards: performing common laboratory procedures skillfully and
E29 Practice for Using Significant Digits in Test Data to safely. It is expected that work will be performed in a properly
Determine Conformance with Specifications equipped laboratory.
E50 Practices for Apparatus, Reagents, and Safety Consid-
6. Interferences
erations for Chemical Analysis of Metals, Ores, and
Related Materials
6.1 The elements ordinarily present in beryllium-copper
E135 Terminology Relating to Analytical Chemistry for
alloys do not interfere.
Metals, Ores, and Related Materials
E173 Practice for Conducting Interlaboratory Studies of
7. Apparatus
7.1 Electrodes for Electroanalysis—Recommended station-
ary type platinum electrodes are described in 7.1.1 and 7.1.2.
1
This test method is under the jurisdiction of ASTM Committee E01 on
The surface of the platinum electrode should be smooth, clean,
Analytical Chemistry for Metals, Ores, and Related Materials and is the direct
and bright to promote uniform deposition and good adherence.
responsibility of Subcommittee E01.05 on Cu, Pb, Zn, Cd, Sn, Be, Precious Metals,
Deviations from the exact size and shape are allowable. In
their Alloys, and Related Metals.
instances where it is desirable to decrease the time of deposi-
Current edition approved June 1, 2018. Published July 2018. Originally approved
in 2011. Last previous edition approved in 2018 as E2824–18. DOI: 10.1520/E2824-
tion and agitation of the electrolyte is permissible, a generally
18A.
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 ----------------------
E2824 − 18a
available rotating type of electrode may be employed. Cleaning compounds may be toxic. Care should be exercised to prevent
of the electrode by sandblasting is not recommended. contact of beryllium-containing materials with the skin. The
7.1.1 Cathodes—Platinum cathodes may be either open or inhalation of any beryllium-containing substance, either as a
closed cylinders formed from sheets that are plain or volatile compound or as finely
...
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.
Designation: E2824 − 18 E2824 − 18a
Standard Test Method for
Determination of Beryllium in Copper-Beryllium Alloys by
1
Phosphate Gravimetric MethodGravimetry
This standard is issued under the fixed designation E2824; 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 test method describes the determination of beryllium in copper-beryllium alloys in percentages from 0.1 % to 3.0 %
by the phosphate gravimetric method.gravimetry.
1.2 Units—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. Specific hazard statements are given in Section 9.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
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)
E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E1601 Practice for Conducting an Interlaboratory Study to Evaluate the Performance of an Analytical Method
3. Terminology
3.1 For definitions of terms used in this method, refer to Terminology E135.
4. Summary of Test Method
4.1 Beryllium is precipitated as the phosphate, which is filtered, ignited, and weighed as beryllium pyrophosphate. Interfering
elements, if present, may be complexed with (ethylenedinitrilo) tetraacetate solution.
5. Significance and Use
5.1 This test method for the chemical analysis of metals and alloys is primarily intended to test such materials for compliance
with compositional specifications. It is assumed that all who use these test methods 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 The elements ordinarily present in beryllium-copper alloys 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, Precious Metals, their Alloys, and Related Metals.
Current edition approved April 15, 2018June 1, 2018. Published June 2018July 2018. Originally approved in 2011. Last previous edition approved in 20112018 as
E2824–11.–18. DOI: 10.1520/E2824-18. 10.1520/E2824-18A.
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 ----------------------
E2824 − 18a
7. Apparatus
7.1 Electrodes for Electroanalysis—Recommended stationary type platinum electrodes are described in 7.1.1 and 7.1.2. The
surface of the platinum electrode should be smooth, clean, and bright to promote uniform deposition and good adherence.
Deviations from the exact size and shape are allowable. In instances where it is desirable to decrease the time of deposition,
deposition and agitation of the electrolyte is permissible, a generally available rotating type of electrode may be employed.
Cleaning of the elect
...
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