ISO INTERNATIONAL STANDARD 11227 First edition 2012-09-15 Space systems Test procedure to evaluate spacecraft material ejecta upon hypervelocity impact Systemes spatiaux-Mode operatoire d'essai pour I'evaluation des ejectats demateriaux des vehicules spatiaux resultant d'impacts a hypervitesse Reference number ISO 11227:2012(E) SO @ ISO 2012 4"WVE4246 ISO11227:2012(E) COPYRIGHTPROTECTEDDOCUMENT ISO2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or IsO's memberbody inthe countryof the requester. ISO copyright office Casepostale56·CH-1211Geneva20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ ISO 2012 -All rights reserved E'eqr(tkijigf'd["WPG.'E"1gpqxc."8"4:226"Ocftkf.Urckp"cmn"tkijiu'tgugtxgf+*Ygf"Hgd’36"245<24"WVE"4246 ISO 11227:2012(E) Contents Page Foreword .iv Introduction 1 Scope. 2 Normative references 3 Terms,definitions,abbreviatedtermsandsymbols 3.1 Terms and definitions.. 3.2 Abbreviated terms.. 3.3 Symbols 4 General requirements 5 Calibration 5.1 General 5.2 Impact parameters 5.3 General environment. 5.4 Ejectacharacterization. 5 5.5 Reportofcalibrationtests 5 6 Experimental procedure 5 6.1 General... 5 6.2 Impactparameters 6.3 General environment. 6.4 Ejecta characterization and evaluation 6 6.5 Additionaltests. 6.6 Analysis of test results 7 Reportingoftestresults. 8 7.1 General... 8 7.2 Reportoftestingofmaterials 7.3 Database 9 8 Quality assurance 9 8.1 General. 9 8.2 Quality requirements 9 AnnexA(informative)Characterizationof materialejectedupon impact (ejecta) 11 AnnexB (informative)Exampleofanejectamodel AnnexC(informative)Ejectameasurementmethods AnnexD(informative)Exampleofadatasheet .20 AnnexE(informative)Technicaldata. 22 Bibliography. 23 ii intkInff