ASTM-C781 Standard Practice for Testing Graphite Materials for Gas-Cooled Nuclear Reactor Components

ASTM-C781 - 2018 EDITION - CURRENT
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Standard Practice for Testing Graphite Materials for Gas-Cooled Nuclear Reactor Components
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Scope

1.1 This practice covers the application and limitations of test methods for measuring the properties of graphite materials. These properties may be used for the design and evaluation of gas-cooled reactor components.

1.2 The test methods referenced herein are applicable to materials used for replaceable and permanent components as defined in Section 7 and includes fuel elements; removable reflector elements and blocks; permanent side reflector elements and blocks; core support pedestals and elements; control rod, reserve shutdown, and burnable poison compacts; and neutron shield material. Specific aspects with respect to testing of irradiated materials are addressed.

1.3 This practice includes test methods that have been selected from ASTM standards and guides that are specific to the testing of materials listed in 1.2. Comments on individual test methods for graphite components are given in Section 8. The test methods are summarized in Table 1.

1.4 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.

1.5 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.

1.6 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.

Keywords

chemical properties; graphite; gas-cooled nuclear reactors; mechanical properties; neutronic properties; physical properties; thermal properties;; ICS Number Code 27.120.10 (Reactor engineering)

To find similar documents by ASTM Volume:

05.05 (Combustion Characteristics; Manufactured Carbon and Graphite Products; Catalysts)

To find similar documents by classification:

27.120.10 (Reactor engineering)

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Document Number

ASTM-C781-18

Revision Level

2018 EDITION

Status

Current

Modification Type

Revision

Publication Date

Nov. 1, 2018

Document Type

Practice

Page Count

10 pages

Committee Number

D02.F0