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ASTM D2460-05

Historical Revision

Standard Test Method for Alpha-Particle-Emitting Isotopes of Radium in Water (Withdrawn 2022)

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1.1 This test method covers the separation of dissolved radium from water for the purpose of measuring its radioactivity. Although all radium isotopes are separated, the test method is limited to alpha-particle-emitting isotopes by choice of radiation detector. The most important of these radioisotopes are 223Ra, 224Ra, and 226Ra. The lower limit of concentration to which this test method is applicable is 3.7 10-2 Bq/L (1 pCi/L).

1.2 This test method may be used for absolute measurements by calibrating with a suitable alpha-emitting radioisotope such as 226Ra, or for relative methods by comparing measurements with each other. Mixtures of radium isotopes may be reported as equivalent 226Ra. Information is also provided from which the relative contributions of radium isotopes may be calculated.

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. For a specific precautionary statement, see Section 9.


SDO ASTM: ASTM International
Document Number D2460
Publication Date June 1, 2005
Language en - English
Page Count 7
Revision Level 05
Supercedes
Committee D19.04
Publish Date Document Id Type View
Jan. 1, 2013 D2460-07R13 Revision
June 15, 2007 D2460-07 Revision
June 1, 2005 D2460-05 Revision
Jan. 1, 1997 D2460-97 Revision