NF ISO 11665-2
Measurement of radioactivity in the environment - Air : radon-222 - Part 2 : integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products
ISO 11665-2:2012 describes integrated measurement methods for short-lived radon-222 decay products. It gives indications for measuring the average potential alpha energy concentration of short-lived radon-222 decay products in the air and the conditions of use for the measuring devices.ISO 11665-2:2012 covers samples taken over periods varying from a few weeks to one year. ISO 11665-2:2012 is not applicable to systems with a maximum sampling duration of less than one week.
ISO 11665-2:2012 describes integrated measurement methods for short-lived radon-222 decay products. It gives indications for measuring the average potential alpha energy concentration of short-lived radon-222 decay products in the air and the conditions of use for the measuring devices.
ISO 11665-2:2012 covers samples taken over periods varying from a few weeks to one year. ISO 11665-2:2012 is not applicable to systems with a maximum sampling duration of less than one week.
Le présent document donne des recommandations pour mesurer l'énergie alpha potentielle volumique des descendants à vie courte du radon 222 dans l'atmosphère. Parmi les différentes méthodes existantes, seules les méthodes de mesure intégrée sont couvertes par le présent document. Ce document décrit le mode de prélèvement, le mode de détection et les conditions d'utilisation. Il doit être utilisé conjointement avec la norme NF M 60-763.
ISO 11665-2:2012 describes integrated measurement methods for short-lived radon-222 decay products. It gives indications for measuring the average potential alpha energy concentration of short-lived radon-222 decay products in the air and the conditions of use for the measuring devices. ISO 11665-2:2012 covers samples taken over periods varying from a few weeks to one year. ISO 11665-2:2012 is not applicable to systems with a maximum sampling duration of less than one week.
- Avant-proposiv
- Introductionv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes, dfinitions et symboles1
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3.1 Termes et définitions1
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3.2 Symboles1
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4 Principe de la méthode de mesure2
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5 Équipement3
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5.1 Généralités3
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5.2 Dispositif de mesure3
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5.3 Système de comptage4
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6 Prélèvement4
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6.1 Objectif du prélèvement4
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6.2 Caractéristiques du prélèvement4
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6.3 Conditions de prélèvement5
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7 Méthode de détection6
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8 Mesurage6
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8.1 Mode opératoire6
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8.2 Grandeurs d'influence6
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8.3 Étalonnage7
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9 Expression des résultats7
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9.1 Énergie alpha potentielle volumique moyenne7
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9.2 Incertitude type8
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9.3 Seuil de décision et limite de détection8
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9.4 Limites de l'intervalle de confiance9
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10 Rapport d'essai9
- Annexe A (informative) Exemple d'une méthode qui satisfait aux exigences de la présente partie de l'ISO 1166511
- Bibliographie13
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