NF M60-805-5

December 2005

Standard Cancelled

Nuclear energy - Measurement of environmental radioactivity - Water - Part 5 : measurement of the activity and concentration of uranium in water by alpha spectrometry

Le présent document décrit les conditions de mesurage de l'activité en uranium dans l'eau.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2005

Number of pages

17 p.

Reference

NF M60-805-5

ICS Codes

13.060.60 Examination of physical properties of water

17.240 Radiation measurements

Classification index

M60-805-5

Print number

1 - 10/11/2005

Sumary

Nuclear energy - Measurement of environmental radioactivity - Water - Part 5 : measurement of the activity and concentration of uranium in water by alpha spectrometry

Le présent document décrit les conditions de mesurage de l'activité en uranium dans l'eau.

Standard replaced by (1)

NF ISO 13166

May 2014

Standard Cancelled

Water quality - Uranium isotopes - Test method using alpha-spectrometry

ISO 13166:2014 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.

Table of contents

Introduction
5
1 Objet et domaine d'application
5
1.1 Objet
5
1.2 Domaine d'application
5
2 Références normatives
5
3 Définitions, symboles, abréviations (1, 2, 3)
6
4 Principe
8
5 Équipement
9
5.1 Matériel de préparation
9
5.2 Équipement de mesure par spectrométrie alpha
9
5.3 Réactifs
10
6 Échantillonnage
10
6.1 Généralités
10
6.2 Prélèvement de l'échantillon
10
6.3 Préparation de l'échantillon pour le dosage de l'uranium dissous
11
6.4 Préparation de l'échantillon pour le dosage de l'uranium particulaire
11
6.5 Préparation de l'échantillon pour le dosage de l'uranium total
11
6.6 Conservation de l'échantillon pour analyse
11
7 Mode opératoire
11
7.1 Traçage
11
7.2 Phase de concentration
11
7.3 Élimination du fer par extraction
12
7.4 Purification
12
7.5 Fabrication de la source pour le mesurage par spectrométrie alpha
12
8 Mesurage par spectrométrie alpha
13
8.1 Étalonnage et vérification
13
8.2 Mesurage
13
9 Expression des résultats
14
9.1 Rendement global RG
14
9.2 Activité volumique du radionucléide présent dans l'échantillon
14
9.3 Seuil de décision
15
9.4 Limite de détection (5)
15
9.5 Concentration volumique du radionucléide présent dans l'échantillon.
16
10 Présentation des résultats
16
Bibliographie
17

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