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ISO FDIS 13166-1

2013 Edition, November 12, 2013

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Water quality - Uranium isotopes - Part 1: Test method using alpha-spectrometry

Includes all amendments and changes through Draft , November 12, 2013

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Description / Abstract:

This part of ISO 13166 specifies the conditions for the determination of uranium isotope activity concentration in samples of environmental water (including sea waters) using alpha-spectrometry and 232U as a yield tracer. A chemical separation is required to separate and purify uranium from a test portion of the sample.

Plutonium isotopes can interfere, if present, with detectable activities in the sample.

The detection limit for measurement of a test portion of about 500 ml is approximately 5 mBq · l−1 with a counting time of about 200 000 s.
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