ISO INTERNATIONAL STANDARD 21494 First edition 2019-02 Space systems - Magnetic testing Systemes spatiauxEssais magnetiques Reference number IS0 21494:2019(E) @IS02019 IS0 21494:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2019 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 21494:2019(E) Contents Page Foreword .iv Introduction 1 Scope. 1 2 Normative references 1 3 Terms and definitions 1 4 Abbreviated terms .3 5 Requirements .3 5.1 EUT requirements 3 5.2 Test requirements 4 6 Test items. .4 7 Test room environments .5 8 Magnetic field test methods 5 8.1 Testpurpose 5 8.2 Test facilities. 5 8.3 Procedures for magnetic field test 6 9 Magnetic moment test methods .6 9.1 Testpurpose 6 9.2 Test facilities. 6 9.3 Procedures and calculating formulas for magnetic moment test 7 9.4 Magnetic moment test in the geomagnetic field 7 10 Magnetization and demagnetization test methods .7 10.1 Testpurpose 7 10.2 Test facilities 7 10.3 Procedures for magnetization and demagnetization test .8 11 Magnetic compensation test method 8 11.1 Testpurpose 8 11.2 Procedures for magnetic compensation test 9 12 Test report .9 Annex A (informative) Procedures for a magnetic field test 10 Annex B (informative) Procedures and calculating formulas for a magnetic moment test. .13 Annex C (informative) Procedures for a magnetization and demagnetization test .24 Annex D (informative) Procedures for a magnetic compensation test .26 Bibliography .27 @ IS0 2019 - All rights reserved ii