ASTM D1943-05(2012) PDF

Scope: 1.1 This test method covers the measurement of alpha particle activity of water. It is applicable to nuclides that emit alpha particles with energies above 3.9 MeV and at activity levels above 0.02 Bq/mL (540 pCi/L) of radioactive homogeneous water. This test method is not applicable to samples containing alpha-emitting radionuclides that are volatile under conditions of the analysis. 1.2 This test method can be used for either absolute or relative determinations. In tracer work, the results may be expressed by comparison with a standard that is defined to be 100 %. For radioassay, data may be expressed in terms of alpha disintegration rates after calibration with a suitable standard. General information on radioactivity and measurement of radiation has been published 2 and summarized in Practice D3648. 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.

ASTM D1943-05(2012) Referenced Document

ASTM D1129 Standard Terminology Relating to Water
ASTM D1193 Standard Specification for Reagent Water
ASTM D2777 Standard Practice for Determination of Precision and Bias of Applicable Methods of Committee D-19 on Water
ASTM D3370 Standard Practices for Sampling Water from Closed Conduits
ASTM D3648 Standard Practices for the Measurement of Radioactivity

2020 ASTM D1943-20 Standard Test Method for Alpha Particle Radioactivity of Water
2012 ASTM D1943-05(2012) Standard Test Method for Alpha Particle Radioactivity of Water&thinsp
2005 ASTM D1943-05 Standard Test Method for Alpha Particle Radioactivity of Water
1996 ASTM D1943-96 Standard Test Method for Alpha Particle Radioactivity of Water