ISO INTERNATIONAL STANDARD 4064-2 Fourthedition 2014-06-01 Water meters for cold potable water and hot water - Part 2: Test methods Compteurs d'eau potable froide et chaude - Partie 2: Méthodes d'essai Reference number IS0 4064-2:2014(E) LSO IS02014 IHS under itted without license from IHS Not for Resale IS0 4064-2:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2014 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2014 - All rights reserved No reproductic networking permited without license from IHS Not for Resale IS0 4064-2:2014(E) Contents Page Foreword ..V 1 Scope ..1 2 Normative references 3 Terms and definitions 4 Reference conditions. 5 Symbols, units and equations ..3 6 External examination ..3 6.1 General. .3 6.2 Object of the examination ? 6.3 Preparation .3 6.4 Examination procedures. .4 7 Performance tests for all water meters ..8 7.1 General .8 7.2 Required conditions for all tests. 7.3 Static pressure test (IS0 4064-1:2014|0IML R 49-1:2013, 4.2.10) 9 7.4 Determination of intrinsic errors (of indication) (IS0 4064-1:2014|0IML R 49-1:2013, 7.2.3). .10 7.5 Water temperature test (IS0 4064-1:2014|0IML R 49-1:2013, 4.2.8) .18 7.6 Overload water temperature test (IS0 4064-1:2014|01ML R 49-1:2013, 7.2.5) ..18 7.7 Water pressure test (IS0 4064-1:2014|0IML R 49-1:2013, 4.2.8) .19 7.8 Reverse flow test (IS0 4064-1:2014|0IML R 49-1:2013, 4.2.7) 19 7.9 Pressure loss test (IS0 4064-1:2014|0IML R 49-1:2013, 6.5) .21 7.10 Flow disturbance tests (IS0 4064-1:2014|0IML R 49-1:2013, 6.3.4) .25 7.11 Durability tests (IS0 4064-1:2014|0IML R 49-1:2013, 7.2.6) .26 7.12 Magnetic field testing ..31 7.13 Tests on ancillary devices of a water meter .31 7.14 Environmental testing. .32 8 Performance tests related to influence factors and disturbances ..32 8.1 General requirements (IS0 4064-1:2014|0IML R 49-1:2013, A.1) ..32 8.2 Dry heat (non-condensing) (IS0 4064-1:2014|0IML R 49-1:2013, A.5) .36 8.3 Cold (IS0 4064-1:2014|0IML R 49-1:2013, A.5) .37 8.4 Damp heat, cyclic (condensing) (IS0 4064-1:2014|0IML R 49-1:2013, A.5) .38 8.5 Power supply variation (IS0 4064-1:2014|0IML R 49-1:2013, A.5). ..39 8.6 Vibration (random) (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 8.7 Mechanical shock (IS0 4064-1:2014|0IML R 49-1:2013, A.5) ..43 8.8 AC mains voltage dips, short interruptions and voltage variations (Is0 4064- 1:2014|0IML R 49-1:2013, A.5) ..44 8.9 Bursts on signal lines (IS0 4064-1:2014|0IML R 49-1:2013, A.5) .45 8.10 Bursts (transients) on AC and DC mains (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 8.11 Electrostatic discharge (IS0 4064-1:2014|0IML R 49-1:2013, A.5) .48 8.12 Radiated electromagnetic fields (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 49 8.13 Conducted electromagnetic fields (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 51 8.14 Surges on signal, data and control lines (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 53 8.15 Surges on AC and DC mains power lines (IS0 4064-1:2014|0IML R 49-1:2013, A.5) 54 8.16 Static magnetic field (IS0 4064-1:2014|0IML R 49-1:2013, 7.2.8) 55 8.17 Absence of flow test. .56 9 Test program for type evaluation. ..57 9.1 Number of samples required. 57 9.2 Performance test applicable to all water meters. 9.3 Performance tests applicable to electronic water meters, mechanical water meters fitted withelectronicdevices,andtheirseparableparts. 58 iii nse with ISt ted withoutlicense from IHS Not for Resale