Standard Test Method for Alpha and Beta Activity in Water By Liquid Scintillation Counting
|Publication Date:||1 June 2017|
|ICS Code (Radiation measurements):||17.240|
This test method covers the measurement of gross alpha- and beta- activity concentrations in a homogeneous water sample. It is applicable to alpha emitters with activity concentration levels above 0.11 Bq/L (3 pCi/L) and beta emitters with activity concentration levels above 0.15 Bq/L (4 pCi/L). This test method is not applicable to samples containing radionuclides that are volatile under conditions of the analysis.
This test method may also be used for the direct measurement of gross alpha- and beta- activity concentrations in homogeneous water samples with alpha emitter activity concentration levels above 1.8 Bq/L (50 pCi/L) and beta emitter activity concentration levels above 3.7 Bq/L (100 pCi/L).
This test method was tested using single-operator tests.2,3Acollaborative study following the U.S. EPA"Protocol for the Evaluation of Alternate Test Procedures for Analyzing Radioactive Contaminants in Drinking Water" was performed. The results of this study are on file at ASTM Headquarters.4
The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to pCi/L that are provided for information only and are not considered standard. An exception is noted in Section 14.
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 international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2 Wong, C. T., Soliman, V. M., and Perera, S. K., Journal of Radioanalytical and Nuclear Chemistry, Vol 264, No. 2, 2005, pp. 357-363.
3 Ruberu, S.R., Liu, Y.G., and Perera, S.K., Health Physics, Vol 95, No. 4, October 2008, pp. 397-406.
4 Supporting data have been filed at ASTM International Headquarters and may be obtained by requesting Research Report RR:D19-1195. Contact ASTM Customer Service at firstname.lastname@example.org.