1、BS EN ISO 16641:2016Measurement of radioactivity in the environment Air Radon 220: Integrated measurement methods for the determination of the average activity concentration using passive solid-state nuclear track detectors (ISO 16641:2014)BSI Standards PublicationBS EN ISO 16641:2016 BRITISH STANDA
2、RDNational forewordThis British Standard is the UK implementation of EN ISO 16641:2016. It is identical to ISO 16641:2014.Attention is drawn to the fact that during the development of this International Standard, the UK committee voted against its approval.This standard proposes a new passive detect
3、or system for measuring thoron (Rn-220) which consists of two passive diffusion chambers. It is the opinion of the UK committee that ISO 16641 does not provide clear guidance and lacks essential technical information about the specific parameters of the diffusion chambers and their operation. More i
4、nformation is needed about the design and technical requirements of the diffusion chambers and the values required for the minimum and maximum diffusion rates of radon/thoron detectors. The UK committee is also of the opinion that ISO 16641 should include additional instruction in section 6.3.1, Ins
5、tallation of sampling devices, to avoid placement of detectors in close proximity to the walls or directly on the floor, so that the risk of thoron contamination from the building materials is minimised.The UK participation in its preparation was entrusted to Technical Committee NCE/2, Radiation pro
6、tection 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 responsible for its correct application. The British Standards Institution 2016
7、. Published by BSI Standards Limited 2016ISBN 978 0 580 90933 7ICS 17.240Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2016.Amendments/corrigenda issued
8、 since publicationDate Text affectedg3g3g3g8g24g21g18g19g8g4g17g3g22g23g4g17g7g4g21g7g3g17g18g21g16g8g3g8g24g21g18g19 g8g17g17g8g3g8g24g21g18g19 g12g22g6g11g8g3g17g18g21g16g3EN ISO 16641 g3 g3g3 g4g146g148g139g142g3g884g882g883g888g3g12g6g22g3g883g889g484g884g886g882g3g8g144g137g142g139g149g138g3g25
9、g135g148g149g139g145g144g3g3g16g135g131g149g151g148g135g143g135g144g150g3g145g136g3g148g131g134g139g145g131g133g150g139g152g139g150g155g3g139g144g3g150g138g135g3g135g144g152g139g148g145g144g143g135g144g150g3g486g3g4g139g148g3g486g3g21g131g134g145g144g3g884g884g882g483g3g12g144g150g135g137g148g131g15
10、0g135g134g3g143g135g131g149g151g148g135g143g135g144g150g3g143g135g150g138g145g134g149g3g136g145g148g3g150g138g135g3g134g135g150g135g148g143g139g144g131g150g139g145g144g3g145g136g3g150g138g135g3g131g152g135g148g131g137g135g3g131g133g150g139g152g139g150g155g3g133g145g144g133g135g144g150g148g131g150g13
11、9g145g144g3g151g149g139g144g137g3g146g131g149g149g139g152g135g3g149g145g142g139g134g486g149g150g131g150g135g3g144g151g133g142g135g131g148g3g150g148g131g133g141g3g134g135g150g135g133g150g145g148g149g3g523g12g22g18g3g883g888g888g886g883g483g884g882g883g886g524g3g16g135g149g151g148g131g137g135g3g134g13
12、5g3g142g131g3g148g131g134g139g145g131g133g150g139g152g139g1503g3g134g131g144g149g3g1424g135g144g152g139g148g145g144g144g135g143g135g144g150g3g486g3g4g139g148g3g486g3g21g131g134g145g144g3g884g884g882g483g3g163g150g138g145g134g135g3g134g135g3g143g135g149g151g148g135g3g139g144g1503g137g1483g135g3g146g1
13、45g151g148g3g142g131g3g1343g150g135g148g143g139g144g131g150g139g145g144g3g134g135g3g1424g131g133g150g139g152g139g1503g3g152g145g142g151g143g139g147g151g135g3g143g145g155g135g144g144g135g3g131g152g135g133g3g134g135g149g3g1343g150g135g133g150g135g151g148g149g3g146g131g149g149g139g136g149g3g149g145g142
14、g139g134g135g149g3g134g135g3g150g148g131g133g135g149g3g144g151g133g1423g131g139g148g135g149g3g523g12g22g18g3g883g888g888g886g883g483g884g882g883g886g524g3g3 g8g148g143g139g150g150g142g151g144g137g3g134g135g148g3g21g131g134g139g145g131g141g150g139g152g139g1506g150g3g139g144g3g134g135g148g3g24g143g153
15、g135g142g150g3g486g3g15g151g136g150g3g486g3g21g131g134g145g144g486g884g884g882g483g3g12g144g150g135g137g148g139g135g148g135g144g134g135g3g16g135g149g149g143g135g150g138g145g134g135g144g3g1369g148g3g134g139g135g3g5g135g149g150g139g143g143g151g144g137g3g134g135g148g3g143g139g150g150g142g135g148g135g14
16、4g3g4g141g150g139g152g139g1506g150g149g141g145g144g156g135g144g150g148g131g150g139g145g144g3g143g139g150g3g146g131g149g149g139g152g135g144g3g9g135g149g150g141=g148g146g135g148g149g146g151g148g134g135g150g135g141g150g145g148g135g144g3g523g12g22g18g3g883g888g888g886g883g483g884g882g883g886g524g23g138g
17、139g149g3g8g151g148g145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g153g131g149g3g131g146g146g148g145g152g135g134g3g132g155g3g6g8g17g3g145g144g3g884g883g3g9g135g132g148g151g131g148g155g3g884g882g883g888g484g3g3g3g6g8g17g3g143g135g143g132g135g148g149g3g131g148g135g3g132g145g151g144g134g3g150g1
18、45g3g133g145g143g146g142g155g3g153g139g150g138g3g150g138g135g3g6g8g17g512g6g8g17g8g15g8g6g3g12g144g150g135g148g144g131g142g3g21g135g137g151g142g131g150g139g145g144g149g3g153g138g139g133g138g3g149g150g139g146g151g142g131g150g135g3g150g138g135g3g133g145g144g134g139g150g139g145g144g149g3g136g145g148g3g
19、137g139g152g139g144g137g3g150g138g139g149g3g8g151g148g145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g150g138g135g3g149g150g131g150g151g149g3g145g136g3g131g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134g3g153g139g150g138g145g151g150g3g131g144g155g3g131g142g150g135g148g131
20、g150g139g145g144g484g3g24g146g486g150g145g486g134g131g150g135g3g142g139g149g150g149g3g131g144g134g3g132g139g132g142g139g145g137g148g131g146g138g139g133g131g142g3g148g135g136g135g148g135g144g133g135g149g3g133g145g144g133g135g148g144g139g144g137g3g149g151g133g138g3g144g131g150g139g145g144g131g142g3g14
21、9g150g131g144g134g131g148g134g149g3g143g131g155g3g132g135g3g145g132g150g131g139g144g135g134g3g145g144g3g131g146g146g142g139g133g131g150g139g145g144g3g150g145g3g150g138g135g3g6g8g17g486g6g8g17g8g15g8g6g3g16g131g144g131g137g135g143g135g144g150g3g6g135g144g150g148g135g3g145g148g3g150g145g3g131g144g155g
22、3g6g8g17g3g143g135g143g132g135g148g484g3g3g23g138g139g149g3g8g151g148g145g146g135g131g144g3g22g150g131g144g134g131g148g134g3g135g154g139g149g150g149g3g139g144g3g150g138g148g135g135g3g145g136g136g139g133g139g131g142g3g152g135g148g149g139g145g144g149g3g523g8g144g137g142g139g149g138g481g3g9g148g135g144
23、g133g138g481g3g10g135g148g143g131g144g524g484g3g4g3g152g135g148g149g139g145g144g3g139g144g3g131g144g155g3g145g150g138g135g148g3g142g131g144g137g151g131g137g135g3g143g131g134g135g3g132g155g3g150g148g131g144g149g142g131g150g139g145g144g3g151g144g134g135g148g3g150g138g135g3g148g135g149g146g145g144g149g
24、139g132g139g142g139g150g155g3g145g136g3g131g3g6g8g17g3g143g135g143g132g135g148g3g139g144g150g145g3g139g150g149g3g145g153g144g3g142g131g144g137g151g131g137g135g3g131g144g134g3g144g145g150g139g136g139g135g134g3g150g145g3g150g138g135g3g6g8g17g486g6g8g17g8g15g8g6g3g16g131g144g131g137g135g143g135g144g150
25、g3g6g135g144g150g148g135g3g138g131g149g3g150g138g135g3g149g131g143g135g3g149g150g131g150g151g149g3g131g149g3g150g138g135g3g145g136g136g139g133g139g131g142g3g152g135g148g149g139g145g144g149g484g3g3g6g8g17g3g143g135g143g132g135g148g149g3g131g148g135g3g150g138g135g3g144g131g150g139g145g144g131g142g3g14
26、9g150g131g144g134g131g148g134g149g3g132g145g134g139g135g149g3g145g136g3g4g151g149g150g148g139g131g481g3g5g135g142g137g139g151g143g481g3g5g151g142g137g131g148g139g131g481g3g6g148g145g131g150g139g131g481g3g6g155g146g148g151g149g481g3g6g156g135g133g138g3g21g135g146g151g132g142g139g133g481g3g7g135g144g1
27、43g131g148g141g481g3g8g149g150g145g144g139g131g481g3g9g139g144g142g131g144g134g481g3g9g145g148g143g135g148g3g28g151g137g145g149g142g131g152g3g21g135g146g151g132g142g139g133g3g145g136g3g16g131g133g135g134g145g144g139g131g481g3g9g148g131g144g133g135g481g3g10g135g148g143g131g144g155g481g3g10g148g135g13
28、5g133g135g481g3g11g151g144g137g131g148g155g481g3g12g133g135g142g131g144g134g481g3g12g148g135g142g131g144g134g481g3g12g150g131g142g155g481g3g15g131g150g152g139g131g481g3g15g139g150g138g151g131g144g139g131g481g3g15g151g154g135g143g132g145g151g148g137g481g3g16g131g142g150g131g481g3g17g135g150g138g135g1
29、48g142g131g144g134g149g481g3g17g145g148g153g131g155g481g3g19g145g142g131g144g134g481g3g19g145g148g150g151g137g131g142g481g3g21g145g143g131g144g139g131g481g3g22g142g145g152g131g141g139g131g481g3g22g142g145g152g135g144g139g131g481g3g22g146g131g139g144g481g3g22g153g135g134g135g144g481g3g22g153g139g150g
30、156g135g148g142g131g144g134g481g3g23g151g148g141g135g155g3g131g144g134g3g24g144g139g150g135g134g3g14g139g144g137g134g145g143g484g3g3g3g3g3g8g24g21g18g19g8g4g17g3g6g18g16g16g12g23g23g8g8g3g9g18g21g3g22g23g4g17g7g4g21g7g12g29g4g23g12g18g17g3g6g18g16g12g23 g3g8g24g21g18g19 g8g17g3g7g8g3g17g18g21g16g4g1
31、5g12g22g4g23g12g18g17g3g8g24g21g18g19 g12g22g6g11g8g22g3g14g18g16g12g23g8g8g3g9Fg21g3g17g18g21g16g24g17g10g3g3g3g3CEN-CENELECg3Management Centre: Avenue Marnix 17, B-1000 Brussels Gg3g884g882g883g888g3g6g8g17g3 g4g142g142g3g148g139g137g138g150g149g3g145g136g3g135g154g146g142g145g139g150g131g150g139g
32、145g144g3g139g144g3g131g144g155g3g136g145g148g143g3g131g144g134g3g132g155g3g131g144g155g3g143g135g131g144g149g3g148g135g149g135g148g152g135g134g3g153g145g148g142g134g153g139g134g135g3g136g145g148g3g6g8g17g3g144g131g150g139g145g144g131g142g3g16g135g143g132g135g148g149g484g3g21g135g136g484g3g17g145g48
33、4g3g8g17g3g12g22g18g3g883g888g888g886g883g483g884g882g883g888g3g8European foreword The text of ISO 16641:2014 has been prepared by Technical Committee ISO/TC 85 “Nuclear energy, nuclear technologies, and radiological protection” of the International Organization for Standardization (ISO) and has bee
34、n taken over as EN ISO 16641:2016 by Technical Committee CEN/TC 430 “Nuclear energy, nuclear technologies, and radiological protection” the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by
35、 endorsement, at the latest by October 2016, and conflicting national standards shall be withdrawn at the latest by October 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for
36、 identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former
37、 Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 16641:20
38、14 has been approved by CEN as EN ISO 16641:2016 without any modification. BS EN ISO 16641:2016EN ISO 16641:2016 (E)BS EN ISO 16641:2016ISO 16641:2014(E) ISO 2014 All rights reserved iiiContents g19g131g137g135Foreword ivIntroduction v1 Scope .12 Normative references 1g885g3 g23g135g148g143g149g481g
39、3g134g135g976g139g144g139g150g139g145g144g149g481g3g131g144g134g3g149g155g143g132g145g142g149 1g885g484g883g3 g23g135g148g143g149g3g131g144g134g3g134g135g976g139g144g139g150g139g145g144g149 .1g885g484g884g3 g22g155g143g132g145g142g149 .34 Principle of the measurement method .45 Equipment .56 Samplin
40、g 6g888g484g883g3 g22g131g143g146g142g139g144g137g3g145g132g140g135g133g150g139g152g135 .6g888g484g884g3 g22g131g143g146g142g139g144g137g3g133g138g131g148g131g133g150g135g148g139g149g150g139g133g149 .6g888g484g885g3 g22g131g143g146g142g139g144g137g3g133g145g144g134g139g150g139g145g144g149 .67 Detect
41、ion method with solid-state nuclear track detectors (SSNTD) .78 Measurement procedure 7g890g484g883g3 g10g135g144g135g148g131g142 .7g890g484g884g3 g12g144g976g142g151g135g144g133g139g144g137g3g152g131g148g139g131g132g142g135g149 .8g890g484g885g3 g6g131g142g139g132g148g131g150g139g145g144 89 Expressi
42、on of results 9g891g484g883g3 g4g152g135g148g131g137g135g3g150g138g145g148g145g144g3g131g133g150g139g152g139g150g155g3g133g145g144g133g135g144g150g148g131g150g139g145g144 .9g891g484g884g3 g22g150g131g144g134g131g148g134g3g151g144g133g135g148g150g131g139g144g150g155 .99.3 Decision threshold 109.4 Det
43、ection limit 10g891g484g887g3 g6g145g144g976g139g134g135g144g133g135g3g142g139g143g139g150g14911g891g484g888g3 g8g154g131g143g146g142g135 1110 Test report 12Annex A g523g139g144g136g145g148g143g131g150g139g152g135g524 Radon-220 and its decay products .14g5g139g132g142g139g145g137g148g131g146g138g155
44、 .16BS EN ISO 16641:2016ISO 16641:2014(E)BS EN ISO 16641:2016ISO 16641:2014(E)Forewordg12g22g18g3g523g150g138g135g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g18g148g137g131g144g139g156g131g150g139g145g144g3g136g145g148g3g22g150g131g144g134g131g148g134g139g156g131g150g139g145g144g524g3g139
45、g149g3g131g3g153g145g148g142g134g153g139g134g135g3g136g135g134g135g148g131g150g139g145g144g3g145g136g3g144g131g150g139g145g144g131g142g3g149g150g131g144g134g131g148g134g149g3g132g145g134g139g135g149g3g523g12g22g18g3g143g135g143g132g135g148g3g132g145g134g139g135g149g524g484g3g23g138g135g3g153g145g148
46、g141g3g145g136g3g146g148g135g146g131g148g139g144g137g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g22g150g131g144g134g131g148g134g149g3g139g149g3g144g145g148g143g131g142g142g155g3g133g131g148g148g139g135g134g3g145g151g150g3g150g138g148g145g151g137g138g3g12g22g18g3g150g135g133g138g144g139g13
47、3g131g142g3g133g145g143g143g139g150g150g135g135g149g484g3g8g131g133g138g3g143g135g143g132g135g148g3g132g145g134g155g3g139g144g150g135g148g135g149g150g135g134g3g139g144g3g131g3g149g151g132g140g135g133g150g3g136g145g148g3g153g138g139g133g138g3g131g3g150g135g133g138g144g139g133g131g142g3g133g145g143g14
48、3g139g150g150g135g135g3g138g131g149g3g132g135g135g144g3g135g149g150g131g132g142g139g149g138g135g134g3g138g131g149g3g150g138g135g3g148g139g137g138g150g3g150g145g3g132g135g3g148g135g146g148g135g149g135g144g150g135g134g3g145g144g3g150g138g131g150g3g133g145g143g143g139g150g150g135g135g484g3g12g144g150g1
49、35g148g144g131g150g139g145g144g131g142g3g145g148g137g131g144g139g156g131g150g139g145g144g149g481g3g137g145g152g135g148g144g143g135g144g150g131g142g3g131g144g134g3g144g145g144g486g137g145g152g135g148g144g143g135g144g150g131g142g481g3g139g144g3g142g139g131g139g149g145g144g3g153g139g150g138g3g12g22g18g481g3g131g142g149g145g3g150g131g141g135g3g146g131g148g150g3g139g144g3g150g138g135g3g153g145g148g141g484g3g12g22g18g3g133g145g142g142g131g132g145g148g131g150g135g149g3g133g142g145g149g135g142g155g3g153g139g150g138g3g150g138g135g3g12g144g150g135g148g144g131g150g139g145g144g131g142g3g8g142g13
