BS ISO 11665-11-2016 Measurement of radioactivity in the environment Air radon-222 Test method for soil gas with sampling at depth《环境中放射性的测量 空气 氡-222 深度采样的土壤气体试验方法》.pdf
《BS ISO 11665-11-2016 Measurement of radioactivity in the environment Air radon-222 Test method for soil gas with sampling at depth《环境中放射性的测量 空气 氡-222 深度采样的土壤气体试验方法》.pdf》由会员分享,可在线阅读,更多相关《BS ISO 11665-11-2016 Measurement of radioactivity in the environment Air radon-222 Test method for soil gas with sampling at depth《环境中放射性的测量 空气 氡-222 深度采样的土壤气体试验方法》.pdf(36页珍藏版)》请在麦多课文档分享上搜索。
1、BSI Standards PublicationBS ISO 11665-11:2016Measurement of radioactivityin the environment Air:radon-222Part 11: Test method for soil gas withsampling at depthBS ISO 11665-11:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 11665-11:2016.The UK participati
2、on in its preparation was entrusted to Technical Committee NCE/2, Radiation protection and measurement.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are
3、responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83246 8 ICS 13.040.01; 17.240 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority
4、 of the Standards Policy and Strategy Committee on 30 April 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 11665-11:2016 ISO 2016Measurement of radioactivity in the environment Air: radon-222 Part 11: Test method for soil gas with sampling at depthMesurage de l
5、a radioactivit dans lenvironnement Air: radon 222 Partie 11: Mthode dessai pour le gaz du sol avec un prlvement en profondeurINTERNATIONAL STANDARDISO11665-11First edition2016-04-15Reference numberISO 11665-11:2016(E)BS ISO 11665-11:2016ISO 11665-11:2016(E)ii ISO 2016 All rights reservedCOPYRIGHT PR
6、OTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without pr
7、ior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgBS ISO 11
8、665-11:2016ISO 11665-11:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms, definitions and symbols 23.1 Terms and definitions . 23.2 Symbols . 24 Principle 35 Equipment . 36 Sampling 46.1 Sampling objective . 46.2 Sampling characteristics . 46.3 Sampling conditions . 46.3.1
9、General 46.3.2 Location of sampling place 56.3.3 Sampling duration 56.3.4 Volume of air sampled . 56.3.5 Minimal depth of sampling . 57 Detection . 68 Measurement . 68.1 Procedure 68.2 Influence quantities 68.3 Calibration 79 Expression of results 79.1 Radon activity concentration 79.2 Standard unce
10、rtainty . 79.3 Decision threshold and detection limit 79.4 Limits of the confidence interval . 810 Test report . 8Annex A (informative) Values of soil-gas volumes available for extraction 10Annex B (normative) Measurement method using an active sampling 11Annex C (normative) Measurement method using
11、 a passive sampling 18Annex D (informative) Examples of soil-gas sampling probes for active sampling 21Bibliography .24 ISO 2016 All rights reserved iiiContents PageBS ISO 11665-11:2016ISO 11665-11:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of n
12、ational standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Inter
13、national organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those inte
14、nded for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www
15、.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document w
16、ill be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expres
17、sions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information.The committee responsible for this document is Technical Committee ISO/TC 85, Nuclear energy,
18、 nuclear technologies, and radiological protection, Subcommittee SC 2, Radiological protection.ISO 11665 consists of the following parts, under the general title Measurement of radioactivity in the environment Air: radon-222: Part 1: Origins of radon and its short-lived decay products and associated
19、 measurement methods Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products Part 4: Integrated measurement metho
20、d for determining average activity concentration using passive sampling and delayed analysis Part 5: Continuous measurement method of the activity concentration Part 6: Spot measurement method of the activity concentration Part 7: Accumulation method for estimating surface exhalation rate Part 8: Me
21、thodologies for initial and additional investigations in buildings Part 9: Test methods for exhalation rate of building materials Part 11: Test method for soil gas with sampling at depthThe following part is under preparation: Part 10: Determination of the diffusion coefficient in waterproof materia
22、ls using activity concentration measurementiv ISO 2016 All rights reservedBS ISO 11665-11:2016ISO 11665-11:2016(E)IntroductionRadon isotopes 222, 220 and 219 are radioactive gases produced by the disintegration of radium isotopes 226, 224 and 223, which are decay products of uranium-238, thorium-232
23、 and uranium-235, respectively, and are all found in the Earths crust. Solid elements, also radioactive, followed by stable lead are produced by radon disintegration1.When disintegrating, radon emits alpha particles and generates solid decay products, which are also radioactive (polonium, bismuth, l
24、ead, etc.). The potential effects on human health of radon lie in its solid decay products rather than the gas itself. Whether or not they are attached to atmospheric aerosols, radon decay products can be inhaled and deposited in the bronchopulmonary tree to varying depths according to their size.Ra
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