ISO 9698:2019

Published (Edition 3, 2019)

ISO 9698:2019

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Abstract

This document specifies a method by liquid scintillation counting for the determination of tritium activity concentration in samples of marine waters, surface waters, ground waters, rain waters, drinking waters or of tritiated water ([³H]H₂O) in effluents.

The method is not directly applicable to the analysis of organically bound tritium; its determination requires additional chemical processing of the sample (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.

General information

Status
: Published

Publication date
: 2019-05

Stage
: International Standard to be revised [90.92]
Edition
: 3

Number of pages
: 25
Technical Committee :
ISO/TC 147/SC 3

ICS :
13.280 13.060.60
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