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  • BSI
    BS EN ISO 9698:2015 Water quality. Determination of tritium activity concentration. Liquid scintillation counting method
    Edition: 2015
    $442.60
    / user per year

Description of BS EN ISO 9698:2015 2015

ISO 9698:2010 specifies the conditions for the determination of tritium activity concentration in samples of environmental water or of tritiated water using liquid scintillation counting. The choice of the analytical procedure, either with or without distillation of the water sample prior to determination, depends on the aim of the measurement and the sample characteristics. Direct measurement of a raw water sample using liquid scintillation counting has to consider the potential presence of other beta emitter radionuclides. To avoid interference with these radionuclides when they are detected, the quantification of tritium will be performed following the sample treatment by distillation. Three distillation procedures are described. The method is not applicable to the analysis of organically bound tritium; its determination requires additional chemical processing (such as chemical oxidation or combustion). With suitable technical conditions, the detection limit may be as low as 1 Bq l-1. Tritium activity concentrations below 106 Bq l-1 can be determined without any sample dilution. A prior enrichment step can significantly lower the limit of detection.

Standard NumberBS EN ISO 9698:2015
TitleWater quality. Determination of tritium activity concentration. Liquid scintillation counting method
StatusWithdrawn
Publication Date2015-07-31
Withdrawn Date2019-06-14
Replaced ByBS EN ISO 9698:2019
Identical National Standard OfEN ISO 9698:2015, ISO 9698:2010, ISO 9698
CorrectsBS ISO 9698:2010
DescriptorsRadiation measurement, Radionuclides, Measurement characteristics, Determination of content, Water resources, Liquids, Water, Quality, Tritium, Water testing, Radioactive materials, Scintillation counters
ICS13.280 Radiation protection, 13.060.60 Examination of physical properties of water, 13.080 Soil quality. Pedology
CommitteeEH/3/8
ISBN978 0 580 88453 5
PublisherBSI
Pages36

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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