ASTM D7219-19
(Specification)Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
SCOPE
1.1 This specification covers the classification, processing, and typical properties of as-manufactured nuclear grade graphite billets with dimensions sufficient to meet the designer’s requirements for fuel elements, moderator or reflector blocks, in a high temperature reactor. The graphite classes specified here may be suitable for reactor core applications where dimensional change due to fast neutron irradiation has a significant impact on design, provided they meet the requirements of the ASME code.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. (See IEEE/ASTM SI 10.)
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.
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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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:D7219 −19
Standard Specification for
1
Isotropic and Near-isotropic Nuclear Graphites
This standard is issued under the fixed designation D7219; 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* C1233Practice for Determining Equivalent Boron Contents
of Nuclear Materials
1.1 This specification covers the classification, processing,
D346 Practice for Collection and Preparation of Coke
andtypicalpropertiesofas-manufacturednucleargradegraph-
Samples for Laboratory Analysis
ite billets with dimensions sufficient to meet the designer’s
D2638Test Method for Real Density of Calcined Petroleum
requirements for fuel elements, moderator or reflector blocks,
Coke by Helium Pycnometer
in a high temperature reactor. The graphite classes specified
D4175Terminology Relating to Petroleum Products, Liquid
here may be suitable for reactor core applications where
Fuels, and Lubricants
dimensional change due to fast neutron irradiation has a
IEEE/ASTM SI 10American National Standard for Use of
significant impact on design, provided they meet the require-
theInternationalSystemofUnits(SI):TheModernMetric
ments of the ASME code.
System
1.2 The values stated in SI units are to be regarded as
2.2 ASME Standard:
standard. No other units of measurement are included in this
NQA-1 Quality Assurance Program Requirements for
standard. (See IEEE/ASTM SI 10.)
Nuclear Facilities, Sec III Div 5 Sub Sect HH sub-partA:
3
1.3 This standard does not purport to address all of the
Graphite Materials (HHA)
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
3.1 Definitions—Definitionsrelatingtothisspecificationare
mine the applicability of regulatory limitations prior to use.
given in Terminology D4175.
1.4 This international standard was developed in accor-
3.2 Definitions of Terms Specific to This Standard:
dance with internationally recognized principles on standard-
3.2.1 baking/re-baking charge, n—in carbon and graphite
ization established in the Decision on Principles for the
technology, number of billets in a baking/re-baking furnace
Development of International Standards, Guides and Recom-
run.
mendations issued by the World Trade Organization Technical
3.2.2 bulk density, n—in carbon and graphite technology,
Barriers to Trade (TBT) Committee.
mass of a unit volume of material including both permeable
2. Referenced Documents and impermeable voids.
2
3.2.3 extrusion forming lot, n—in carbon and graphite
2.1 ASTM Standards:
technology, number of billets of the same size extruded in an
C559Test Method for Bulk Density by Physical Measure-
uninterrupted sequence.
ments of Manufactured Carbon and Graphite Articles
C781PracticeforTestingGraphiteMaterialsforGas-Cooled
3.2.4 grain, n—in manufactured carbon and graphite, par-
Nuclear Reactor Components
ticle of filler material (usually coke or graphite) in the starting
C838Test Method for Bulk Density of As-Manufactured
mix formulation; also referred to as granular material, filler
Carbon and Graphite Shapes
particle,oraggregatematerial;thetermisalsousedtodescribe
the general texture of a carbon or graphite body, as in the
descriptions listed below:
1
This specification is under the jurisdiction of ASTM Committee D02 on
3.2.4.1 coarse grained, adj—containing grains in the start-
Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of
ing mix that are substantially greater than 4 mm in size.
Subcommittee D02.F0 on Manufactured Carbon and Graphite Products.
Current edition approved Nov. 1, 2019. Published November 2019. Originally
3.2.4.2 medium coarse grained, adj—containing grains in
approved in 2005. Last previous edition approved in 2014 as D7219–08 (2014).
the starting mix that are generally less than 4 mm in size.
DOI: 10.1520/D7219-19.
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 Available from American Society of Mechanical Engineers (ASME), ASME
the ASTM website. International Headquarters, Two Park Ave., New York, NY 10016-5990.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Con
...
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: D7219 − 08 (Reapproved 2014) D7219 − 19 An American National Standard
Standard Specification for
1
Isotropic and Near-isotropic Nuclear Graphites
This standard is issued under the fixed designation D7219; 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 Scope*
1.1 This specification covers the classification, processing, and typical properties of as-manufactured nuclear grade graphite
billets with dimensions sufficient to meet the designer’s requirements for fuel elements, moderator or reflector blocks, in a high
temperature gas cooled reactor. The graphite classes specified here wouldmay be suitable for reactor core applications where
neutron irradiation induced dimensional changes are a significant design consideration.dimensional change due to fast neutron
irradiation has a significant impact on design, provided they meet the requirements of the ASME code.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
(See IEEE/ASTM SI 10.)
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
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:
C559 Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
3
C709 Terminology Relating to Manufactured Carbon and Graphite (Withdrawn 2017)
C781 Practice for Testing Graphite Materials for Gas-Cooled Nuclear Reactor Components
C838 Test Method for Bulk Density of As-Manufactured Carbon and Graphite Shapes
C1233 Practice for Determining Equivalent Boron Contents of Nuclear Materials
D346 Practice for Collection and Preparation of Coke Samples for Laboratory Analysis
D2638 Test Method for Real Density of Calcined Petroleum Coke by Helium Pycnometer
D4175 Terminology Relating to Petroleum Products, Liquid Fuels, and Lubricants
IEEE/ASTM SI 10 American National Standard for Use of the International System of Units (SI): The Modern Metric System
2.2 ASME Standard:
NQA-1 Quality Assurance Program Requirements for Nuclear FacilitiesFacilities, Sec III Div 5 Sub Sect HH sub-part A:
3
Graphite Materials (HHA)
3. Terminology
3.1 Definitions—Definitions relating to this specification are given in Terminology C709D4175.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 baking/re-baking charge—charge, n—in carbon and graphite technology, number of billets in a baking/re-baking furnace
run.
1
This specification is under the jurisdiction of ASTM Committee D02 on Petroleum Products, Liquid Fuels, and Lubricants and is the direct responsibility of Subcommittee
D02.F0 on Manufactured Carbon and Graphite Products.
Current edition approved May 1, 2014Nov. 1, 2019. Published July 2014November 2019. Originally approved in 2005. Last previous edition approved in 20082014 as
D7219 – 08.D7219 – 08 (2014). DOI: 10.1520/D7219-08R14. 10.1520/D7219-19.
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
Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, ThreeTwo Park Ave., New York, NY 10016-5990.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D7219 − 19
3.2.2 bulk density—density, n—in carbon and graphite technology, mass of a unit volume of material including both permeable
and impermeable voids.
3.2.3 extrusion forming lot—lot, n—in carbon and graphite technology, number of billets of the
...
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