NF ISO 18589-4
Measurements of radioactivity in the environment - Soil - Part 4 : measurement of plutonium isotopes (plutonium 238 and plutonium 239 + 240) by alpha spectrometry
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.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.
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.
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.
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.
This document describes a method for measuring 238Pu 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. The test methods described in this document can also be used to measure the radionuclides in sludge, sediment, construction material and products following proper sampling procedure[2][3][4][5][7][8]. 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.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes, définitions et symboles1
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4 Principe2
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5 Réactifs et appareillage2
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6 Mode opératoire3
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7 Expression des résultats4
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8 Rapport d'essai6
- Annexe A (informative) Plutonium désorbé7
- Annexe B (informative) Séparation chimique du plutonium par un solvant organique11
- Annexe C (informative) Séparation chimique du plutonium sur une résine anionique13
- Annexe D (informative) Séparation chimique du plutonium par des résines spécifiques15
- Annexe E (informative) Préparation de la source par électrodéposition18
- Annexe F (informative) Préparation de la source par coprécipitation21
- Bibliographie22
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