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ASTM C1414-01(2007)

Current Reaffirmation

Standard Practice for the Separation of Americium from Plutonium by Ion Exchange

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1.1 This practice describes the use of an ion exchange technique to separate plutonium from solutions containing low concentrations of americium prior to measurement of
the 241Am by gamma counting.

1.2 This practice covers the removal of plutonium, but not all the other radioactive isotopes that may interfere in the determination of 241Am.

1.3 This practice can be used when 241Am is to be determined in samples in which the plutonium is in the form of metal, oxide, or other solid provided that the solid is appropriately sampled and dissolved (See Test Methods C758, C759, and C1168).

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.


This practice is applicable when small amounts
of 241Am are present in plutonium samples (see Test Methods C 758 and C 759). An example is the determination of 241Am in a 238Pu sample. The high specific activity of 238Pu presents a safety hazard that precludes its presence in a counting facility. Therefore, it is necessary to remove the 238Pu prior to the determination of 241Am.

When a plutonium solution contains fission or activation products, this practice does not separate all radionuclides that interfere in the determination of 241Am, such as the rare earths.

SDO ASTM: ASTM International
Document Number C1414
Publication Date Feb. 1, 2007
Language en - English
Page Count 2
Revision Level 01(2007)
Supercedes
Committee C26.05
Publish Date Document Id Type View
Jan. 1, 2014 C1414-01R14 Revision
Jan. 10, 2001 C1414-99 Revision
Jan. 10, 2001 C1414-01 Revision
Feb. 1, 2007 C1414-01R07 Reaffirmation