NF M60-802-3

NF M60-802-3

June 2002
Standard Cancelled

Nuclear energy - Measurement of radioactivity in the environment - Water - Part 3 : beta emitters activity measurement by liquid scintillation - Particular case of simultaneous presence of tritium and carbon 14

Le présent document décrit les conditions de mesurage de l'activité des émetteurs Bêta purs par scintillation liquide adaptées au mesurage simultané du tritium et du carbone 14 dans les échantillons d'eaux brutes ou filtrées de l'environnement.

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Main informations

Collections

National standards and national normative documents

Publication date

June 2002

Number of pages

17 p.

Reference

NF M60-802-3

ICS Codes

13.060.01   Water quality in general
17.240   Radiation measurements
27.120.01   Nuclear energy in general

Classification index

M60-802-3

Print number

1 - 23/05/2002
Sumary
Nuclear energy - Measurement of radioactivity in the environment - Water - Part 3 : beta emitters activity measurement by liquid scintillation - Particular case of simultaneous presence of tritium and carbon 14

Le présent document décrit les conditions de mesurage de l'activité des émetteurs Bêta purs par scintillation liquide adaptées au mesurage simultané du tritium et du carbone 14 dans les échantillons d'eaux brutes ou filtrées de l'environnement.
Standard replaced by (1)
NF ISO 13168
October 2015
Standard Cancelled
Water quality - Simultaneous determination of tritium and carbon 14 activities - Test method using liquid scintillation counting

<p>ISO 13168:2015 describes a test method for the simultaneous measurement of tritium and carbon-14 in water samples by liquid scintillation counting of a source obtained by mixing the water sample with a hydrophilic scintillation cocktail.</p> <p>This is considered a screening method because of the potential presence of interfering nuclides in the test sample.</p> <p>The method can be used for any type of environmental study or monitoring.</p> <p>ISO 13168:2015 is applicable to all types of waters having an activity concentration ranging from 5 Bq/l to 10<sup>6</sup> Bq/l (upper limit of the liquid scintillation counters for direct counting). For higher activity concentrations, the sample can be diluted to obtain a test sample within this range.</p>

Table of contents
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  • 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
  • 3.1 Termes et définitions
    7
  • 4 Principe
    8
  • 5 Réactifs
    9
  • 5.1 Liquide scintillant
    9
  • 5.2 Sources radioactives certifiées
    9
  • 5.3 Agent d'affaiblissement lumineux (agent quenchant)
    9
  • 5.4 Eau de référence
    9
  • 6 Équipements
    10
  • 6.1 Matériels de laboratoire
    10
  • 6.2 Ensemble de mesure à scintillation liquide
    10
  • 7 Échantillonnage
    11
  • 7.1 Prélèvement de l'échantillon
    11
  • 7.2 Conservation de l'échantillon pour analyse
    11
  • 8 Mode opératoire
    11
  • 8.1 Préparation de l'échantillon
    11
  • 8.2 Préparation des sources à mesurer
    11
  • 8.3 Analyse
    12
  • 9 Expression des résultats
    13
  • 9.1 Activité volumique en tritium et en carbone 14 dans l'échantillon
    14
  • 9.2 Seuil de décision
    15
  • 9.3 Limite de détection
    16
  • 10 Présentation des résultats
    16
  • 10.1 Activité volumique du tritium
    16
  • 10.2 Activité volumique du carbone 14
    16
  • Bibliographie
    17
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