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ASTM C1458-00

Historical Revision

Standard Test Method for Nondestructive Assay of Plutonium, Tritium and <sup>241</sup>Am by Calorimetric Assay

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1.1 This test method describes the nondestructive assay (NDA) of plutonium, tritium, and 241Am using heat flow calorimetry. For plutonium the range of applicability corresponds to 1 g to > 2000 g quantities while for tritium the range extends from 0.001 g to > 10 g. This test method can be applied to materials in a wide range of container sizes up to 50 L. It has been used routinely to assay items whose thermal power ranges from 0.001 W to 135 W.

1.2 This test method requires knowledge of the relative abundances of the plutonium isotopes and the 241Am/Pu mass ratio to determine the total plutonium mass.

1.3 This test method provides a direct measure of tritium content.

1.4 This test method provides a measure of 241Am either as a single isotope or mixed with plutonium.

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.


SDO ASTM: ASTM International
Document Number C1458
Publication Date Jan. 10, 2000
Language en - English
Page Count 15
Revision Level 00
Supercedes
Committee C26.10
Publish Date Document Id Type View
March 1, 2016 C1458-16 Revision
Feb. 1, 2009 C1458-09E01 Revision
Feb. 1, 2009 C1458-09 Revision
Jan. 10, 2000 C1458-00 Revision