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ASTM D 7283 Document Information:
Title
Standard Test Method for Alpha- And Beta- Activity in Water By Liquid Scintillation Counting
ASTM International
Publication Date:
Dec 15, 2006
Scope:
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 0.037 Bq/L (1 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 a single-operator
test.2 Round-robin testing is currently in progress on
this test method.
Standard methods under the jurisdiction of ASTM Committee
D19 may be published for a limited time preliminary to the
completion of full collaborative study validation. Such standards
are deemed to have met all other D19 qualifying requirements but
have not completed the required validation studies to fully
characterize the performance of the Test Method across multiple
laboratories and matrices. Preliminary publication is done to make
current technology accessible to users of standards, and to solicit
additional input from the user community.
The values stated in SI units are to be regarded as standard. No
other units of measurement are included in this standard.
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.
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.
Keywords:
- gross alpha radioactivity
- gross beta radioactivity
- gross radioactivity measurement
- liquid scintillation counter
- water
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