NF M60-790-7

July 1999

Standard Cancelled

Nuclear energy. Measurement of radioactivity in the environment-Soil. Part 7 : methodology for strontium 90 activity measurement in soil samples.

Le présent document présente les principes et les difficultés de la détermination de l'activité du strontium 90 dans les échantillons de sol et propose en annexe trois méthodes de mesure.

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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

21 p.

Reference

NF M60-790-7

ICS Codes

13.280 Radiation protection

17.240 Radiation measurements

27.120.01 Nuclear energy in general

Classification index

M60-790-7

Print number

1 - 22/06/1999

Sumary

Nuclear energy. Measurement of radioactivity in the environment-Soil. Part 7 : methodology for strontium 90 activity measurement in soil samples.

Le présent document présente les principes et les difficultés de la détermination de l'activité du strontium 90 dans les échantillons de sol et propose en annexe trois méthodes de mesure.

Standard replaced by (1)

NF ISO 18589-5

May 2009

Standard Cancelled

Measurements of radioactivity in the environment - Soil - Part 5 : measurement of strontium 90

ISO 18589-5:2009 describes the principles for the measurement of the activity of 90Sr in equilibrium with 90Y and 89Sr, pure beta-emitting radionuclides, in soil samples. Different chemical separation methods are presented to produce strontium and yttrium sources, the activity of which is determined using proportional counter (PC) or liquid scintillation counter (LSC). The selection of the measuring method depends on the origin of the contamination, the characteristics of the soil being analysed, the required accuracy of measurement and the resources of the available laboratories. These methods are used for soil monitoring following past or present, accidental or routine, liquid or gaseous discharges. It also covers the monitoring of contamination caused by global fallout. In the case of recent fallout immediately following a nuclear accident, the contribution of 89Sr to the total amount of strontium activity is not negligible. ISO 18589-5:2009 provides the measurement method to determine the activity of 90Sr in the presence of 89Sr.

Table of contents

Avant-propos
5
1 Domaine d'application
5
2 Références normatives
5
3 Définitions, symboles et abréviations
5
4 Principe et difficultés de la mesure
6
5 Produits et matériel
6
6 Mode opératoire
6
7 Expressions des résultats
6
8 Rapport d'essai
6
Bibliographie
7
Annexe A (informative) Mesure du 90 Sr à partir de son descendant à l'équilibre, 90 Y, par précipitation de l'oxalate d'yttrium
8
Annexe B (informative) Mesure du 90 Sr à partir de son descendant à l'équilibre, 90 Y, par extraction organique
13
Annexe C (informative) Mesure du 90 Sr après séparation sur résine spécifique, type "éther couronne"
18

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