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ASTM C760-90(2007)

(Test Method)

Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys

Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys

SIGNIFICANCE AND USE
Silver-indium-cadmium alloy is used as a control material in nuclear reactors. In order to be suitable for this purpose, the material must meet the specifications for assay and impurity content. These test methods are designed to show whether or not a given material meets the specifications as given in Specification C 752.
3.1.1 An assay is performed to determine whether the material has the chemical composition specified.
3.1.2 The impurity content is determined to ensure that the maximum concentration limit of impurities is not exceeded.
SCOPE
1.1 These test methods cover procedures for the chemical and spectrochemical analysis of nuclear grade silver-indium-cadmium (Ag-In-Cd) alloys to determine compliance with specifications.
1.2 The analytical procedures appear in the following order:
Sections Silver, Indium, and Cadmium by a Titration Method 7-15 Trace Impurities by Carrier-Distillation Spectro-
chemical Method16-22
1.3 The values stated in SI units are to be regarded as the standard.
1.4 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 hazard and precautionary statements, see Section 5 and Practices E50.  
7.1 This test method is applicable to the determination of silver, indium, and cadmium in alloys of approximately 80 % silver, 15 % indium, and 5 % cadmium used in nuclear reactor control rod applications. The titrimetric methods presented , will yield results with a bias of the order of 0.1 %.  
16.1 This test method is applicable to the determination of the trace impurities listed in 19.1 in silver-indium-cadmium alloys.

General Information

Status
Historical
Publication Date
30-Jun-2007
ICS
77.040.30 - Chemical analysis of metals
Technical Committee
C26 - Nuclear Fuel Cycle
Drafting Committee
C26.03 - Neutron Absorber Materials Specifications
Current Stage
Ref Project

Relations

Replaces
ASTM C760-90(2002) - Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys
Effective Date
01-Jul-2007
Replaced By
ASTM C760-90(2015) - Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys
Effective Date
01-Jan-2015
Referred By
ASTM C752-18 - Standard Specification for Nuclear-Grade Silver-Indium-Cadmium Alloy
Effective Date
01-Jul-2007

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ASTM C760-90(2007) - Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium AlloysASTM C760-90(2007) - Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys
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ASTM C760-90(2007) - Standard Test Methods for Chemical and Spectrochemical Analysis of Nuclear-Grade Silver-Indium-Cadmium Alloys
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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: C760 − 90 (Reapproved2007)
Standard Test Methods for
Chemical and Spectrochemical Analysis of Nuclear-Grade
1
Silver-Indium-Cadmium Alloys
This standard is issued under the fixed designation C760; 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.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 Other Document:
4
NBS Circular 602
1.1 These test methods cover procedures for the chemical
and spectrochemical analysis of nuclear grade silver-indium-
3. Significance and Use
cadmium (Ag-In-Cd) alloys to determine compliance with
3.1 Silver-indium-cadmium alloy is used as a control mate-
specifications.
rial in nuclear reactors. In order to be suitable for this purpose,
1.2 Theanalyticalproceduresappearinthefollowingorder:
the material must meet the specifications for assay and impu-
Sections rity content. These test methods are designed to show whether
Silver, Indium, and Cadmium by a Titration Method 7-15
or not a given material meets the specifications as given in
Trace Impurities by Carrier-Distillation Spectro- 16-22
Specification C752.
chemical Method
3.1.1 An assay is performed to determine whether the
1.3 The values stated in SI units are to be regarded as the
material has the chemical composition specified.
standard.
3.1.2 The impurity content is determined to ensure that the
maximum concentration limit of impurities is not exceeded.
1.4 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Purity of Reagents
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4.1 Reagent grade chemicals shall be used in all tests.
bility of regulatory limitations prior to use. For specific hazard
Unlessotherwiseindicated,itisintendedthatallreagentsshall
and precautionary statements, see Section 5 and Practices E50.
conform to the specifications of the Committee on Analytical
5
Reagents of the American Chemical Society, where such
2. Referenced Documents specifications are available. Other grades may be used, pro-
vided it is first ascertained that the reagent is of sufficiently
2
2.1 ASTM Standards:
high purity to permit its use without lessening the accuracy of
C752 Specification for Nuclear-Grade Silver-Indium-
the determination.
Cadmium Alloy
4.2 Purity of Water—Unless otherwise indicated, references
D1193Specification for Reagent Water
towatershallbeunderstoodtomeanreagentwaterconforming
E50Practices for Apparatus, Reagents, and Safety Consid-
to Specification D1193.
erations for Chemical Analysis of Metals, Ores, and
Related Materials
5. Hazards
E115Practice for Photographic Processing in Optical Emis-
3
sion Spectrographic Analysis (Withdrawn 2002)
5.1 Properprecautionsshouldbetakentopreventinhalation
or ingestion of heavy element (silver, indium, or cadmium)
powder or dust during handling.
1
These test methods are under the jurisdiction of ASTM Committee C26 on
5.2 Workers should observe precautions as specified in
Nuclear Fuel Cycle and are the direct responsibility of Subcommittee C26.03 on
vendor-supplied Material Safety Data Sheets (MSDS).
Neutron Absorber Materials Specifications.
Current edition approved July 1, 2007. Published August 2007. Originally
approved in 1971. Last previous edition approved in 2002 as C760–90(2002).
4
DOI: 10.1520/C0760-90R07. Available from National Institute of Standards and Technology (NIST), 100
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Bureau Dr., Stop 1070, Gaithersburg, MD 20899-1070, http://www.nist.gov.
5
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Reagent Chemicals, American Chemical Society Specifications, American
Standards volume information, refer to the standard’s Document Summary page on Chemical Society, Washington, DC. For suggestions on the testing of reagents not
the ASTM website. listed by the American Chemical Society, see Analar Standards for Laboratory
3
The last approved version of this historical standard is referenced on Chemicals,BDHLtd.,Poole,Dorset,U.K.andthe United States Pharmacopeia and
www.astm.org. National Formulary,U.S.PharmacopeialConvention,Inc.(USPC),Rockville,MD.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C760 − 90 (2007)
6. Sampling EDTAintoasmallplasticbeaker.Dissolvewithwater,transfer
quantitativelytoa1-Lvolumetricflask,andmakeuptovolume
6.1 Suggestions for sampling this alloy are given in Speci-
with water.Transfer the solution to a plastic storage
...

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SIGNIFICANCE AND USE
3.1 Silver-indium-cadmium alloy is used as a control material in nuclear reactors. In order to be suitable for this purpose, the material must meet the specifications for assay and impurity content. These test methods are designed to show whether or not a given material meets the specifications as given in Specification C752.  
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4.1 These test methods for the chemical analysis of beryllium metal are primarily intended as referee methods 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.
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1.5 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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4.1 These test methods for the chemical analysis of chromium metal and ferrochromium alloy are primarily intended to test such materials for compliance with compositional specifications such as Specifications A101 and A481. 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.
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1.1 These test methods cover the chemical analysis of chromium and ferrochromium having chemical compositions within the following limits:    
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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.  
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5.1 The metallurgical properties of magnesium and its alloys are highly dependant on chemical composition. Precise and accurate analyses are essential to obtaining desired properties, meeting customer specifications and helping to reduce scrap due to off-grade material.  
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1.1 This test method describes the analysis of magnesium and its alloys by atomic emission spectrometry. The magnesium specimen to be analyzed may be in the form of a chill cast disk, casting, sheet, plate, extrusion or some other wrought form or shape. The elements covered in the scope of this method are listed in the table below.    
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0.002 to 5.0  
Silver  
0.001 to 0.2  
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0.0005 to 0.01  
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0.001 to 0.02  
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Zirconium  
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Note 1: The mass fraction ranges given in the above scope are estimates based on two manufacturers observations and data provided by a supplier of atomic emission spectrometers. The range shown for each element does not demonstrate the actual usable analytical range for that element. The usable analytical range may be extended higher or lower based on individual instrument capability, spectral characteristics of the specific element wavelength being used and the availability of appropriate reference materials.  
1.2 This test method is suitable primarily for the analysis of chill cast disks as described in Sampling Practice B953. Other forms may be analyzed, provided that: (1) they are sufficiently massive to prevent undue heating, (2) they allow machining to provide a clean, flat surface which creates a seal between the specimen and the spark stand, and (3) reference materials of a similar metallurgical condition (spectrochemical response) and chemical composition are available.  
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 safety and health statements are given in Section 10.  
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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5.4 This guide contains numerous references to “manufacturer’s recommendations”. The user of this guide is expected to refer to the instrument operation manual for the specific instrument being used or consult directly with the manufacturer to obtain instructions or recommendations.  
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1.1 This guide covers information for using Combustion, Inert Gas Fusion and Hot Extraction instruments to determine the mass fraction of the non-metallic elements Carbon, Sulfur, Nitrogen, Oxygen and Hydrogen in metals, ores and related materials.  
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1.3 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.4 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.  
1.5 The information in this guide is contained in the sections indicated as follows:    
Sections  
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14 – 19  
Nitrogen/Oxygen by Inert Gas Fusion/Thermal Conductivity and Infrared Detection  
20 – 25  
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26 – 31  
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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5.1 This test method is suitable for manufacturing control and for verifying that a product meets specifications. This test method provides rapid, multi-element determinations with sufficient accuracy to ensure product quality and to minimize production delays. The analytical performance data may be used as a benchmark to determine if similar X-ray spectrometers provide equivalent precision and accuracy, or if the performance of a particular X-ray spectrometer has changed.  
5.2 Calcium is sometimes added to steel to affect inclusion shape which enhances certain mechanical properties of steel. This test method is useful for determining the residual calcium in the steel after such treatment.  
5.2.1 Because calcium occurs primarily in inclusions, the precision of this test method is a function of the distribution of the calcium-bearing inclusions in the steel. The variation of determinations on freshly prepared surfaces will give some indication of the distribution of these inclusions.
SCOPE
1.1 This test method covers the wavelength dispersive X-ray fluorescence analysis of low-alloy steels for the following elements:    
Element  
Mass Fraction
Range, %  
Calcium  
0.001 to 0.007  
Chromium  
0.04 to 2.5  
Cobalt  
0.03 to 0.2  
Copper  
0.03 to 0.6  
Manganese  
0.04 to 2.5  
Molybdenum  
0.005 to 1.5  
Nickel  
0.04 to 3.0  
Niobium  
0.002 to 0.1  
Phosphorus  
0.010 to 0.08  
Silicon  
0.06 to 1.5  
Sulfur  
0.009 to 0.1  
Vanadium  
0.012 to 0.6  
1.1.1 Unless exceptions are noted, mass fraction ranges can be extended and additional elements can be included by the use of suitable reference materials and measurement conditions. Deviations from the published scope must be validated by experimental means. See Guide E2857 for information on validation options.  
1.2 The values stated in the International System of Units (SI) are to be regarded as standard. The values given in parentheses are mathematical conversions to other units that are provided for information only, because they may be used in older software and laboratory procedures.  
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 precautionary statements are given in Section 10.  
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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