Water quality. Tritium. Test method using liquid scintillation counting1 Scope 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

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ISO 17637 ensures that visual testing of fusion welds in metallic materials is uniform and repeatable

but the procedures can also be used to analyse defects in other metallic structures and non-welded components

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a) Two grades for 38 mm thick scaffold boards

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