ASTM C1031-11(2022)

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:C1031 −11 (Reapproved 2022)
Standard Specification for
Nuclear-Grade Aluminum Oxide Powder
This standard is issued under the fixed designation C1031; 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 2.3 U.S. Government Document:
Code of Federal Regulations, Title 10,Part 50–Energy
1.1 This specification provides the chemical and physical
(10CFR 50), Domestic Licensing of Production and Uti-
requirements for nuclear-grade aluminum oxide powder in-
lization Facilities
tendedforfabricationintoshapesfornuclearapplications.Two
specific uses for which this powder is intended are Al O
2 3
3. Terminology
pellets and Al O −B C composite pellets for use as thermal
2 3 4
3.1 Definitions of Terms Specific to This Standard:
insulator or burnable neutron absorbers, respectively.
3.1.1 Terms shall be defined in accordance with Terminol-
1.2 The material described herein shall be particulate in
ogy C859 except for the following:
nature.
3.1.2 buyer—organization issuing the purchase order.
1.3 Units—The values stated in SI units are to be regarded
3.1.3 powder lot—that quantity of aluminum oxide powder
asstandard.Nootherunitsofmeasurementareincludedinthis
madeupofpowderfromoneormoresources,blendedtogether
standard.
and homogenized such that samples taken in accordance with
theproceduresinSection8canbeconsideredasrepresentative
1.4 This international standard was developed in accor-
of the entire quantity.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.1.4 seller—aluminum oxide manufacturer.
Development of International Standards, Guides and Recom-
4. Ordering Information
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee.
4.1 Thebuyershallspecifythefollowinginformationonthe
order:
2. Referenced Documents
4.1.1 Quantity (weight of delivered product),
4.1.2 Lot size (allowable range),
2.1 ASTM Standards:
4.1.3 Sample requirements, and
C809Test Methods for Chemical, Mass Spectrometric, and
4.1.4 Additional requirements.
Spectrochemical Analysis of Nuclear-Grade Aluminum
Oxide and AluminumOxide-Boron Carbide Composite
5. Chemical Composition
Pellets
5.1 The powder shall conform to the following chemical
C859Terminology Relating to Nuclear Materials
requirements (see Methods C809):
E105Guide for Probability Sampling of Materials
Element Weight %, max
2.2 ANSI Standard:
Silicon 2.0
ANSI/ASME NQA-1Quality Assurance Requirements for
Iron-Chromium-Nickel 0.6
Magnesium 1.0
Nuclear Facility Applications
Sodium 0.2
Calcium 0.3
Hafnium 200 µg/g Al O
2 3
Fluorine 50 µg/g Al O
2 3
This specification is under the jurisdiction of ASTM Committee C26 on
Fluorine-Chlorine-Iodine-Bromine 100 µg/g Al O
2 3
Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 on
Gadolinium 100 µg/g Al O
2 3
Neutron Absorber Materials Specifications.
Samarium 100 µg/g Al O
2 3
CurrenteditionapprovedJuly1,2022.PublishedJuly2022.Originallyapproved
Europium 100 µg/g Al O
2 3
in 1984. Last previous edition approved in 2016 as C1031–11(2016). DOI:
Dysprosium 200 µg/g Al O
2 3
10.1520/C1031-11R22.
5.2 The impurities listed in 5.1, and any other identified
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
impurityexceeding1.0weight%andthetotalconcentrationof
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.
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C1031−11 (2022)
all impurities, shall be reported. The total of all measured 9.1.2 Individual and total impurities,
impurities shall not exceed 4.0 weight%. 9.1.3 Particle size distribution and mean value,
9.1.4 Specific surface area, and
5.3 Loss-on-Ignition—The test method and acceptance lim-
9.1.5
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