ASTM C888-18
(Specification)Standard Specification for Nuclear-Grade Gadolinium Oxide (Gd2O3) Powder
Standard Specification for Nuclear-Grade Gadolinium Oxide (Gd<inf>2</inf>O<inf>3</inf >) Powder
ABSTRACT
This specification provides chemical and physical requirements for nuclear-grade gadolinium oxide powder intended for subsequent processing and use in nuclear fuel applications. Chemical requirements of the specification include loss-on-ignition, gadolinium oxide concentration, and impurity content limits. The buyer shall specify the particle size, density, shape factor, and crystal structure. Gadolinium oxide powder shall be packaged in sealed containers.
SCOPE
1.1 This specification provides the chemical and physical requirements for nuclear-grade gadolinium oxide powder intended for subsequent processing and use in nuclear fuel applications, for example, as an addition to uranium dioxide.
1.2 This specification does not include requirements for health and safety. Observance of this specification does not relieve the user of the obligation to be aware of and comply with all federal, state, and local regulations pertaining to possessing, shipping, processing, or using this material.
1.3 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 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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Standards Content (Sample)
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.
Designation: C888 −18
Standard Specification for
1
Nuclear-Grade Gadolinium Oxide (Gd O ) Powder
2 3
This standard is issued under the fixed designation C888; 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 E11 Specification for Woven Wire Test Sieve Cloth and Test
Sieves
1.1 This specification provides the chemical and physical
E105 Practice for Probability Sampling of Materials
requirements for nuclear-grade gadolinium oxide powder in-
tended for subsequent processing and use in nuclear fuel 2.2 ANSI Standard:
applications, for example, as an addition to uranium dioxide. ASME NQA-1 QualityAssurance Requirements for Nuclear
4
Facility Applications
1.2 This specification does not include requirements for
health and safety. Observance of this specification does not 2.3 U.S. Government Document:
relieve the user of the obligation to be aware of and comply Code of Federal Regulations, Title 10, Part 50 Energy (10
with all federal, state, and local regulations pertaining to CFR 50), Domestic Licensing of Production and Utiliza-
5
possessing, shipping, processing, or using this material. tion Facilities
1.3 The values stated in SI units are to be regarded as
3. Terminology
standard. No other units of measurement are included in this
standard. 3.1 Definitions of Terms Specific to This Standard:
3.1.1 Terms shall be defined in accordance with Terminol-
1.4 This international standard was developed in accor-
ogy C859 except as defined herein.
dance with internationally recognized principles on standard-
3.1.1.1 buyer—the organization issuing the purchase order.
ization established in the Decision on Principles for the
3.1.1.2 powder lot—a quantity of gadolinium oxide powder
Development of International Standards, Guides and Recom-
that has been processed in a manner such that samples taken in
mendations issued by the World Trade Organization Technical
accordance with the procedures of 8.1 can be considered as
Barriers to Trade (TBT) Committee.
representative of the entire powder lot.
3.1.1.3 seller—the gadolinium oxide powder supplier.
2. Referenced Documents
2
2.1 ASTM Standards:
4. Ordering Information
B329 Test Method for Apparent Density of Metal Powders
and Compounds Using the Scott Volumeter 4.1 The buyer shall specify the following information for all
C493 Test Method for Bulk Density and Porosity of Granu- orders where this specification applies:
lar Refractory Materials by Mercury Displacement (Dis-
4.1.1 Powder lot size (allowable range),
3
continued 2002) (Withdrawn 2002) 4.1.2 Quantity (weight of delivered product),
C859 Terminology Relating to Nuclear Materials
4.1.3 Nominal particle size range and applicable tolerances
C889 Test Methods for Chemical and Mass Spectrometric
in accordance with Specification E11,
Analysis of Nuclear-Grade Gadolinium Oxide (Gd O )
4.1.4 Density (optional), Scott Volumeter (Test Method
2 3
Powder
B329) and Mercury Displacement (Test Method C493) are
referenced as guides to density measurement techniques,
4.1.5 Shape factor and method of determination (optional),
1
This specification is under the jurisdiction of ASTM Committee C26 on
4.1.6 Sampling requirements,
Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 on
4.1.7 Crystal structure (optional), and
Neutron Absorber Materials Specifications.
4.1.8 Quality requirements.
CurrenteditionapprovedJune1,2018.PublishedJuly2018.Originallyapproved
in 1978. Last previous edition approved in 2014 as C888 – 03 (2014). DOI:
10.1520/C0888-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Standards volume information, refer to the standard’s Document Summary page on 4th Floor, New York, NY 10036, http://www.ansi.org.
5
the ASTM website. AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
3
The last approved version of this historical standard is referenced on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.astm.org. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C888 − 18
5. Chemical Composition 8.2.2 Acceptance tests by the buyer,
8.2.3 Refereetests,intheeventthesebecomenecessary,and
5.
...
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: C888 − 03 (Reapproved 2014) C888 − 18
Standard Specification for
1
Nuclear-Grade Gadolinium Oxide (Gd O ) Powder
2 3
This standard is issued under the fixed designation C888; 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 specification provides the chemical and physical requirements for nuclear-grade gadolinium oxide powder intended for
subsequent processing and use in nuclear fuel applications, for example, as an addition to uranium dioxide.
1.2 This specification does not include requirements for health and safety. Observance of this specification does not relieve the
user of the obligation to be aware of and comply with all federal, state, and local regulations pertaining to possessing, shipping,
processing, or using this material.
1.3 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 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:
B329 Test Method for Apparent Density of Metal Powders and Compounds Using the Scott Volumeter
C493 Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement (Discontinued
3
2002) (Withdrawn 2002)
C859 Terminology Relating to Nuclear Materials
C889 Test Methods for Chemical and Mass Spectrometric Analysis of Nuclear-Grade Gadolinium Oxide (Gd O ) Powder
2 3
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
E105 Practice for Probability Sampling of Materials
2.2 ANSI Standard:
4
ANSI/ASMEASME NQA-1 Quality Assurance Requirements for Nuclear Facility Applications
2.3 U.S. Government Document:
5
Code of Federal Regulations, Title 10, Part 50 Energy (10 CFR 50), Domestic Licensing of Production and Utilization Facilities
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 Terms shall be defined in accordance with Terminology C859 except as defined herein.
3.1.1.1 buyer—the organization issuing the purchase order.
3.1.1.2 powder lot—a quantity of gadolinium oxide powder that has been processed in a manner such that samples taken in
accordance with the procedures of 8.1 can be considered as representative of the entire powder lot.
3.1.1.3 seller—the gadolinium oxide powder supplier.
1
This specification is under the jurisdiction of ASTM Committee C26 on Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 on Neutron Absorber
Materials Specifications.
Current edition approved Jan. 1, 2014June 1, 2018. Published February 2014July 2018. Originally approved in 1978. Last previous edition approved in 20082014 as
C888 – 03 (2008).(2014). DOI: 10.1520/C0888-03R14.10.1520/C0888-18.
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.
4
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
5
Available from U.S. Government Printing Office Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
C888 − 18
4. Ordering Information
4.1 The buyer shall specify the following information for all orders where this specification applies:
4.1.1 Powder lot size (allowable range),
4.1.2 Quantity (weight of delivered product),
4.1.3 Nominal particle size range and applicable tolerances in accordance with Specification E11,
4.1.4 Density (optional), Scott Volumeter (Test Method B329) and Mercury Displacement (Test Method C493) are referenced
as guides to density measurement techniques,
4.1.5 Shape factor and method of determination (option
...
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