NF M60-790-8

NF M60-790-8

July 1999
Standard Cancelled

Nuclear energy. Measurement of radioactivity in the environment-Soil. Part 8 : methodology for plutonium 238 and plutonium 239 plus 240 activity measurement in soil samples.

Le présent document expose les principes de la mesure des isotopes 238 et 239 + 240 du plutonium dans les échantillons de sol et propose en annexe deux méthodes de séparation et de purification spécifiques.

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Main informations

Collections

National standards and national normative documents

Thematics

Sécurité, Gestion des risques et SST, QSE

Publication date

July 1999

Number of pages

17 p.

Reference

NF M60-790-8

ICS Codes

13.280   Radiation protection
17.240   Radiation measurements
27.120.01   Nuclear energy in general

Classification index

M60-790-8

Print number

1 - 22/06/1999
Sumary
Nuclear energy. Measurement of radioactivity in the environment-Soil. Part 8 : methodology for plutonium 238 and plutonium 239 plus 240 activity measurement in soil samples.

Le présent document expose les principes de la mesure des isotopes 238 et 239 + 240 du plutonium dans les échantillons de sol et propose en annexe deux méthodes de séparation et de purification spécifiques.
Standard replaced by (1)
NF ISO 18589-4
May 2009
Standard Cancelled
Measurements of radioactivity in the environment - Soil - Part 4 : measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry

<p>ISO 18589-4:2009 describes a method for measuring plutonium 238 and 239 + 240 isotopes in soil by alpha spectrometry samples using chemical separation techniques. The method can be used for any type of environmental study or monitoring. These techniques can also be used for measurements of very low levels of activity, one or two orders of magnitude less than the level of natural alpha-emitting radionuclides.</p> <p>The mass of the test portion required depends on the assumed activity of the sample and the desired detection limit. In practice, it can range from 0,1 g to 100 g of the test sample.</p>

Table of contents
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  • Avant-propos
    5
  • 1 Domaine d'application
    5
  • 2 Références normatives
    5
  • 3 Définitions, symboles et abréviations
    6
  • 4 Principe et difficultés de la mesure
    6
  • 5 Produits et matériel
    6
  • 6 Mode opératoire
    6
  • 6.1 Séparation et purification chimiques
    6
  • 6.2 Préparation de la source à mesurer
    6
  • 7 Expression des résultats
    7
  • 7.1 Calcul de l'activité massique
    7
  • 7.2 Incertitude élargie
    7
  • 7.3 Seuil de décision
    8
  • 7.4 Limite de détection
    8
  • 7.5 Présentation des résultats
    8
  • 8 Rapport d'essai
    8
  • Bibliographie
    9
  • Annexe A (informative) Séparation chimique et purification du plutonium sur résine anionique
    10
  • Annexe B (informative) Séparation chimique et purification du plutonium par solvant organique
    12
  • Annexe C (informative) Préparation de la source par électrodéposition
    14
  • Annexe D (informative) Préparation de la source par co-précipitation
    17
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