ASTM-D2460 2013

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D2460-07(2013) Standard Test Method for Alpha-Particle-Emitting Isotopes of Radium in Water

Published By	Publication Date	Number of Pages
ASTM	2013	7

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Categories: 13.060.50 - Examination of water for chemical substances, ASTM

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Description

ASTM D2460-07-Reapproved2013

Withdrawn Standard: Standard Test Method for Alpha-Particle-Emitting Isotopes of Radium in Water (Withdrawn 2022)

ASTM D2460

Scope

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 ²²⁶ Ra, 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.

1.3 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.

Keywords

alpha particles; radioactivity; radium isotopes; water

ICS Code

ICS Number Code 13.060.50 (Examination of water for chemical substances)

DOI: 10.1520/D2460-07R13

Additional information

Standard Title	D2460-07(2013) Standard Test Method for Alpha-Particle-Emitting Isotopes of Radium in Water
Published Code	ASTM
Publication Date	2013
Pages Count	7
ICS Codes	13.060.50 - Examination of water for chemical substances