SIST EN ISO 11665-2:2020 PDF
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 11665-2:2019)
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 11665-2:2019)
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 21
- Дата публикации:
- 6 ноября 2019 г.
- Издание:
- ISO 11665-2:2019
- ICS:
- 13.040.99
This document describes integrated measurement methods for short-lived radon‑222 decay products[4]. 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. This document covers samples taken over periods varying from a few weeks to one year. This document is not applicable to systems with a maximum sampling duration of less than one week. The measurement method described is applicable to air samples with potential alpha energy concentration of short-lived radon-222 decay products greater than 10 nJ/m3 and lower than 1 000 nJ/m3. NOTE For informative purposes only, this document also addresses the case of radon-220 decay products, given the similarity in behaviour of the radon isotopes 222 and 220.
Abstract
Overview
EN ISO 11665-2:2019 (ISO 11665-2:2019) specifies an integrated measurement method for determining the average potential alpha energy concentration (PAEC) of short‑lived decay products of radon-222 in air. Adopted by CEN, this standard describes equipment, sampling procedures, detection and counting methods, calibration, uncertainty assessment and reporting for long‑term measurements (from a few weeks up to one year). It replaces EN ISO 11665-2:2015 and is intended for environmental radioactivity monitoring where PAEC lies between 10 nJ/m3 and 1 000 nJ/m3. For information only, it also addresses radon‑220 decay products due to similar behaviour.
Key topics and technical requirements
- Scope and applicability: Integrated (time‑averaged) measurements of short‑lived radon‑222 decay products in air; not intended for systems with sampling duration less than one week.
- Measurement range: Applicable for PAEC > 10 nJ/m3 and
Технические детали
- Технический комитет
- I13 - Imaginarni 13
- SKU
- SIST EN ISO 11665-2:2020
Похожие стандарты
Упомянутые в описании и другие стандарты SIST