Standard Svensk standard · SS-EN ISO 9698:2015

Water quality - Determination of tritium activity concentration - Liquid scintillation counting method (ISO 9698:2010)

Status: Upphävd

· Ersätts av: SS-EN ISO 9698:2019
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Standard Svensk standard · SS-EN ISO 9698:2015

Water quality - Determination of tritium activity concentration - Liquid scintillation counting method (ISO 9698:2010)
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Omfattning
This International Standard 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. The Annexes B, D and E describe three distillation procedures. 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. Tritium activity concentrations below 106 Bq/l can be determined without any sample dilution. A prior enrichment step can significantly lower the limit of detection.

Ämnesområden

Undersökning av vattens fysikaliska egenskaper (13.060.60) Jordkvalitet, pedologi (13.080)


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Standard Svensk standard · SS-EN ISO 9698:2015

Water quality - Determination of tritium activity concentration - Liquid scintillation counting method (ISO 9698:2010)
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Pris: 1 152 SEK
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Pris: 1 152 SEK
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Produktinformation

Språk: Engelska

Framtagen av: Kemiska vattenundersökningar, SIS/TK 424

Internationell titel: Water quality - Determination of tritium activity concentration - Liquid scintillation counting method (ISO 9698:2010)

Artikelnummer: STD-8015265

Utgåva: 1

Fastställd: 2015-07-27

Antal sidor: 40

Ersätts av: SS-EN ISO 9698:2019