FINAL INTERNATIONAL ISO/FDIS DRAFT STANDARD 13164-2 ISO/TC147/SC3 Water quality Radon-222 Secretariat: AFNOR Voting begins on: Part 2: 2013-05-06 Test method using gamma-ray Voting terminates on: spectrometry 2013-07-06 Qualité de I'eau - Radon 222 - Partie 2: Meéthode d'essai par spectromeétrie gamma RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWAREAND TO PROVIDE SUPPORTING DOCUMENTATION INADDITIONTOTHEIR EVALUATIONAS Reference number BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO- LOGICAL, COMMERCIAL AND USER PURPOSES, ISO/FDIS 13164-2:2013(E) DRAFT INTERNATIONAL STANDARDS MAY ON ISO OCCASION HAVE TO BE CONSIDERED IN THE DARDS TO WHICH REFERENCE MAY BE MADE IN Copyright International Organization for Standardization NS @IS02013 by IHS under withoutlicense from IHS Not for Resale IS0/FDIS 13164-2:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 All 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 prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax +4122 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved or networking permited withoutlicense from IHS Not for Resale IS0/FDIS 13164-2:2013(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Terms, definitions and symbols .2 3.1 Terms and definitions .2 3.2 Symbols.... .2 4 Principle .3 5 Sampling. .3 5.1 General requirement. .3 5.2 Sampling requirement .3 5.3 Sample volume.. .4 5.4 Containercharacteristics .4 6 Transportation and storage .4 7 Detection 8 Measurement procedure ..5 9 Quality assurance and quality control programme .5 9.1 General. .5 9.2 Influence quantities. .5 9.3 Instrument verification. .6 9.4 Method verification. ..6 9.5 Demonstration of analyst capability 6 10 Expression of results. .6 10.1 Activity concentration .6 10.2 Standard uncertainty of the activity concentration 7 10.3 Decision threshold .7 10.4 Detection limit. ..8 10.5 Confidence limits. ..8 11 Test report ..8 Annex A (informative) Sample spectra .10 Annex B (informative) Sample accuracy and precision data ..12 Bibliography ..13 ii se with ISt d without license from IHS Not for Resale