ASTM C781-96

Standard Practice for Testing Graphite and Boronated Graphite Components for High-Temperature Gas-Cooled Nuclear Reactors

STANDARD published on 1.1.1996

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The information about the standard:

Designation standards: ASTM C781-96
Note: WITHDRAWN
Publication date standards: 1.1.1996
SKU: NS-15049
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM C781-96 :

Keywords:

boronated graphite, chemical properties, graphite, high temperature gas-cooled nuclear reactor, mechanical properties, neutronic properties, physical properties, thermal properties, ICS Number Code 27.120.10 (Reactor engineering)

Additional information

1. Scope

1.1 This practice covers the test methods for measuring those properties of graphite and boronated graphite materials that may be used for the design and evaluation of high-temperature gas-cooled reactors.

1.2 The test methods referenced herein are applicable to materials used for replaceable and permanent components as defined in Section 7 and include fuel and removable reflector elements; target elements and insulators; permanent side reflector elements; core support pedestals and elements; control rod, reserve shutdown, and burnable poison compacts, and neutron shield material.

1.3 This practice includes test methods that have been selected from existing ASTM standards, ASTM standards that have been modified, and new ASTM standards that are specific to the testing of materials listed in 1.2. Comments on individual test methods for graphite and for boronated graphite components are given in Sections 8 and 10, respectively. The test methods are summarized in Tables 1 and 2.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

D5600-22	Standard Test Method for Trace Metals in Petroleum Coke by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES)
C1039-85(2020)e1	Standard Test Methods for Apparent Porosity, Apparent Specific Gravity, and Bulk Density of Graphite Electrodes (Includes all amendments and changes 12/7/2020).
C1233-15(2021)	Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
C1274-12(2020)	Standard Test Method for Advanced Ceramic Specific Surface Area by Physical Adsorption
D346-25	Standard Practice for Collection and Preparation of Coke Samples for Laboratory Analysis
D1193-24	Standard Specification for Reagent Water
D2854-09(2025)	Standard Test Method for Apparent Density of Activated Carbon
D2862-16(2022)	Standard Test Method for Particle Size Distribution of Granular Activated Carbon
D3104-25	Standard Test Method for Softening Point of Pitches (Mettler Softening Point Method)
D4292-23	Standard Test Method for Determination of Vibrated Bulk Density of Calcined Petroleum Coke
C749-15(2020)	Standard Test Method for Tensile Stress-Strain of Carbon and Graphite
C769-15	Standard Test Method for Sonic Velocity in Manufactured Carbon and Graphite Materials for Use in Obtaining an Approximate Value of Young's Modulus
C816-15	Standard Test Method for Sulfur Content in Graphite by Combustion-Iodometric Titration Method
C559-16(2020)	Standard Test Method for Bulk Density by Physical Measurements of Manufactured Carbon and Graphite Articles
C561-23	Standard Test Method for Ash in a Graphite Sample
C577-25	Standard Test Method for Permeability of Refractories
C611-21	Standard Test Method for Electrical Resistivity of Manufactured Carbon and Graphite Articles at Room Temperature
C625-15(2021)	Standard Practice for Reporting Irradiation Results on Graphite
C651-20	Standard Test Method for Flexural Strength of Manufactured Carbon and Graphite Articles Using Four-Point Loading at Room Temperature
C695-21	Standard Test Method for Compressive Strength of Carbon and Graphite
C709-09	Standard Terminology Relating to Manufactured Carbon and Graphite (Withdrawn 2017)
C747-23	Standard Test Method for Moduli of Elasticity and Fundamental Frequencies of Carbon and Graphite Materials by Sonic Resonance
E11-24	Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves
E132-17(2025)e1	Standard Test Method for Poisson’s Ratio at Room Temperature (Includes all amendments and changes 12/11/2025).
E228-22	Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
E261-16(2021)	Standard Practice for Determining Neutron Fluence, Fluence Rate, and Spectra by Radioactivation Techniques
E639-78(2002)	Standard Test Method for Measuring Total-Radiance Temperature of Heated Surfaces Using a Radiation Pyrometer (Withdrawn 2011)
E1461-13(2022)	Standard Test Method for Thermal Diffusivity by the Flash Method
D7219-19	Standard Specification for Isotropic and Near-isotropic Nuclear Graphites
C838-16(2023)	Standard Test Method for Bulk Density of As-Manufactured Carbon and Graphite Shapes
C1179-21	Standard Test Method for Oxidation Mass Loss of Manufactured Carbon and Graphite Materials in Air

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