BS ISO 13168:2015 describes a test method for the simultaneous measurement of tritium and carbon-14 in water samples by liquid scintillation counting of a source obtained by mixing the water sample with a hydrophilic scintillation cocktail.

This is considered a screening method because of the potential presence of interfering nuclides in the test sample.

The method can be used for any type of environmental study or monitoring.

This International Standard is applicable to all types of waters having an activity concentration ranging from 5 Bq/l to 106 Bq/l (upper limit of the liquid scintillation counters for direct counting). For higher activity concentrations, the sample can be diluted to obtain a test sample within this range.


Cross References:
ISO 5667-1
ISO 5667-3
ISO 9698
ISO 80000-10
ISO 11929
ISO/IEC Guide 98-3:2008
GUM:1995
ISO/IEC Guide 99:2007
ISO 5667-14
ISO 8258
ISO/IEC 17025


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