Water quality. Radium-226 - Test method using liquid scintillation counting
Water quality. Radium-226 - Test method using liquid scintillation counting
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1 Scope This part of ISO 13165 specifies the determination of radium-226 ( 226 Ra) activity concentration in non-saline water samples by extraction of its daughter radon-222 ( 222 Rn) and its measurement using liquid scintillation counting. Radium-226 activity concentrations which can be measured by this test method utilizing currently available liquid scintillation counters goes down to 50 mBq l −1 . This method is not applicable to the measurement of other radium isotopes.
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