ASTM C1233-15(2021) PDF

Scope: 1.1 This standard details a recommended practice for the calculation of the Equivalent Boron Content (EBC) for nuclear materials. The EBC is used to provide a measure of the macroscopic neutron absorption cross section of a nuclear material. EBC factors for the natural elements are determined from their atomic masses and thermal neutron absorption cross sections. This practice is illustrated by using EBC factors that are based on thermal neutron (2200 m/s) absorption cross sections. Other EBC factors may be used depending upon the actual neutron energy spectrum. 1.2 The EBC is a characteristic of a homogeneous material. Characterization of inhomogeneous materials and calculation of neutron multiplication factors require techniques that are beyond the scope of this practice. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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.

ASTM C1233-15(2021) Referenced Document

ASTM C696 Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Uranium Dioxide Powders and Pellets
ASTM C698 Standard Test Methods for Chemical, Mass Spectrometric, and Spectrochemical Analysis of Nuclear-Grade Mixed Oxides ((U, Pu)O₂)
ASTM C761 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Uranium Hexafluoride
ASTM C799 Standard Test Methods for Chemical, Mass Spectrometric, Spectrochemical, Nuclear, and Radiochemical Analysis of Nuclear-Grade Uranyl Nitrate Solutions
ASTM C859 Standard Terminology Relating to Nuclear Materials

2021 ASTM C1233-15(2021) Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
2015 ASTM C1233-15 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
2009 ASTM C1233-09 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
2003 ASTM C1233-03 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials
1998 ASTM C1233-98 Standard Practice for Determining Equivalent Boron Contents of Nuclear Materials