ASTM C750-09
(Specification)Standard Specification for Nuclear-Grade Boron Carbide Powder
Standard Specification for Nuclear-Grade Boron Carbide Powder
ABSTRACT
This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. The powder shall be classified as: Type 1; Type 2; and Type 3. The material shall conform to the chemical composition requirements prescribed. Quality control tests, acceptance tests, referee tests, and retention of archive samples by the seller shall be performed to conform to the specified requirements.
SCOPE
1.1 This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows:
1.1.1 Type 1—For use as particulate material in nuclear reactor core applications.
1.1.2 Type 2—Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel.
1.1.3 Type 3—Powder that will be used for non-core applications or special in-core applications.
1.2 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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Designation:C750 −09
StandardSpecification for
1
Nuclear-Grade Boron Carbide Powder
This standard is issued under the fixed designation C750; 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 Spectrochemical Analysis of Nuclear-Grade Boron Car-
bide
1.1 This specification defines the chemical and physical
E11 Specification for Woven Wire Test Sieve Cloth and Test
requirements for boron carbide powder intended for a variety
Sieves
of nuclear applications. Because each application has a differ-
E105 Practice for Probability Sampling of Materials
ent need for impurity and boron requirements, three different
3
2.2 ANSI Standard:
chemical compositions of powder are specified. In using this
ANSI/ASME NQA-1 Quality Assurance Program Require-
specification, it is necessary to dictate which type of powder is
ments for Nuclear Facilities
intended to be used. In general, the intended applications for
4
2.3 U.S. Government Document:
the various powder types are as follows:
Title 10, Code of Federal Regulations, Energy Part 50
1.1.1 Type 1—For use as particulate material in nuclear
(10CFR 50), Domestic Licensing of Production and Uti-
reactor core applications.
lization Facilities
1.1.2 Type 2—Powder that will be further processed into a
fabricated shape for use in a nuclear reactor core or used in
3. Terminology
non-core applications when the powder directly or indirectly
3.1 Definitions of Terms Specific to This Standard:
may cause adverse effects on structural components, such as
3.1.1 buyer—organization issuing the purchase order.
halide stress corrosion of stainless steel.
3.1.2 powder lot—that quantity of boron carbide powder
1.1.3 Type 3—Powder that will be used for non-core appli-
blended together such that samples taken in accordance with
cations or special in-core applications.
theproceduresof8.1canbeconsideredasrepresentativeofthe
1.2 The values stated in SI units are to be regarded as
entire powder lot.
standard. No other units of measurement are included in this
3.1.3 seller—boron carbide powder supplier.
standard.
4. Ordering Information
2. Referenced Documents
4.1 The buyer may specify the following information on the
2
2.1 ASTM Standards:
order:
B527 Test Method for Determination of Tap Density of
4.1.1 Quantity (weight of delivered product).
Metallic Powders and Compounds
4.1.2 Nominal particle size, particle size range, and appli-
B822 Test Method for Particle Size Distribution of Metal
cable tolerance.
Powders and Related Compounds by Light Scattering
4.1.3 Density and method of measurement.
B923 Test Method for Metal Powder Skeletal Density by
4.1.4 Angular or spherical shape.
Helium or Nitrogen Pycnometry
4.1.5 Shape factor.
C371 Test Method for Wire-Cloth Sieve Analysis of Non-
4.1.6 Lot size.
plastic Ceramic Powders
4.1.7 Sampling requirements.
C791 Test Methods for Chemical, Mass Spectrometric, and
4.1.8 Powder type (1, 2, or 3).
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4.1.9 Isotopic content ( B).
1
5. Chemical Composition
This specification is under the jurisdiction of ASTM Committee C26 on
Nuclear Fuel Cycle and is the direct responsibility of Subcommittee C26.03 on
NOTE 1—B C powder is hygroscopic and certain applications require
4
Neutron Absorber Materials Specifications.
low-moisture content.
Current edition approved July 1, 2009. Published August 2009. Originally
approved in 1974. Last previous edition approved in 2003 as C750 – 03. DOI:
3
10.1520/C0750-09. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 4th Floor, New York, NY 10036, http://www.ansi.org.
4
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C750−09
5.1 The material shall conform to the chemical composition the application and for this reason should be specified in the
requirements prescribed in Table 1 (see Methods C791). purchase order. Recommended Practice E105 is referenced as
a guide.
5.2 When agreed upon between the buyer and the seller, the
weight loss of the powder shall not exceed 1 % when heated at 8.2 Each sample taken shall be sufficient to perform the
110°C for1hinair. following in the event they
...
This document is not anASTM standard and is intended only to provide the user of anASTM 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:C750–03 Designation: C 750 – 09
Standard Specification for
1
Nuclear-Grade Boron Carbide Powder
This standard is issued under the fixed designation C 750; 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 Thisspecificationdefinesthechemicalandphysicalrequirementsforboroncarbidepowderintendedforavarietyofnuclear
applications. Because each application has a different need for impurity and boron requirements, three different chemical
compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be
used. In general, the intended applications for the various powder types are as follows:
1.1.1 Type 1—For use as particulate material in nuclear reactor core applications.
1.1.2 Type 2—Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core
applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress
corrosion of stainless steel.
1.1.3 Type 3—Powder that will be used for non-core applications or special in-core applications.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
2. Referenced Documents
2
2.1 ASTM Standards:
B329Test Method for Apparent Density of Powders of Refractory Metals and Compounds by the Scott Volumeter
C117Test Method for Material Finer than 75-µm (No. 200) Sieve in Mineral Aggregates by Washing 527 Test Method for
Determination of Tap Density of Metallic Powders and Compounds
B 822 Test Method for Particle Size Distribution of Metal Powders and Related Compounds by Light Scattering
B 923 Test Method for Metal Powder Skeletal Density by Helium or Nitrogen Pycnometry
C 371 Test Method for Wire-Cloth Sieve Analysis of Nonplastic Ceramic Powders
C493Test Method for Bulk Density and Porosity of Granular Refractory Materials by Mercury Displacement Test Method for
Wire-Cloth Sieve Analysis of Nonplastic Ceramic Powders
C 791 Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Boron Carbide
6
C859Terminology Relating to Nuclear Materials Test Methods for Chemical, Mass Spectrometric, and Spectrochemical
Analysis of Nuclear-Grade Boron Carbide
E11 Specification for Wire-Cloth Sieves for Testing Purposes Specification for Woven Wire Test Sieve Cloth and Test Sieves
E 105 Practice for Probability Sampling ofOf Materials
3
2.2 ANSI Standard:
ANSI/ASME NQA-1 Quality Assurance Program Requirements for Nuclear Facilities
4
2.3 U.S. Government Document:
Title 10, Code of Federal Regulations, Energy Part 50 (10CFR 50), Domestic Licensing of Production and Utilization Facilities
3. Terminology
3.1Descriptions of Terms Specific to This Standard—Terms shall be defined in accordance with Terminology C859 except for
the following:
3.1 Definitions of Terms Specific to This Standard:
1
ThisspecificationisunderthejurisdictionofASTMCommitteeC26onNuclearFuelCycleandisthedirectresponsibilityofSubcommitteeC26.03onNeutronAbsorber
Materials Specifications.
Current edition approved July 10, 2003.1, 2009. Published August 2003.2009. Originally approved in 1974. Last previous edition edition approved in 19972003 as
C750–89(1997).C 750 – 03.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
, Vol 02.05.volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Annual Book of ASTM Standards, Vol 04.02.
3
Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
4
Annual Book of ASTM Standards, Vol 15.02.
4
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 ----------------------
C750–09
3.1.1 buyer—organization issuing the purchase order.
3.1.2 powder lot—that quantity of boron carbide powder blended together such that samples taken in accordance with the
procedures o
...
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