BS EN ISO 9698:2015 - Water quality. Determination of tritium activity concentration. Liquid scintillation counting method

BS EN ISO 9698:2015

Water quality. Determination of tritium activity concentration. Liquid scintillation counting method

Status : Superseded, Withdrawn   Published : March 2011 Replaced By : BS EN ISO 9698:2019

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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
StatusSuperseded, Withdrawn
Publication Date31 March 2011
Withdrawn Date14 June 2019
Normative References(Required to achieve compliance to this standard)ISO 5667-14, ISO/IEC 17025, ISO/IEC Guide 98-3:2008, ISO 80000-10, GUM:1995, ISO 5667-1, ISO 5667-3, ISO/IEC Guide 99:2007
Informative References(Provided for Information)ISO 11929:2010, 98/83/EC, ASTM D4107-91, EPA-520/5-84-006:1984, ISO 8258, EPA-600/4-80-032:1980
Replaced ByBS EN ISO 9698:2019
International RelationshipsEN ISO 9698:2015,ISO 9698,ISO 9698:2010
Amended ByCorrigendum, July 2015
DescriptorsScintillation counters, Radioactive materials, Water testing, Tritium, Quality, Water, Liquids, Water resources, Determination of content, Measurement characteristics, Radionuclides, Radiation measurement
ICS13.080
13.060.60
13.280
Title in FrenchQualité de l'eau. Détermination de l'activité volumique du tritium. Méthode par comptage des scintillations en milieu liquide
Title in GermanWasserbeschaffenheit. Bestimmung der Aktivitätskonzentration von Tritium. Verfahren mit dem Flüssigszintillationszähler
CommitteeEH/3/8
ISBN978 0 580 88453 5
PublisherBSI
FormatA4
DeliveryYes
Pages36
File Size433 KB
Price£214.00


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