ISO INTERNATIONAL STANDARD 14952-4 First edition 2003-11-15 Space systems Surface cleanliness of fluid systems - Part 4: Rough-cleaning processes Systemes spatiaux Proprete des surfaces en contact avec des fluides Partie 4: Procedes de nettoyage grossier Reference number ISO 14952-4:2003(E) ISO ISO2003 E'eqr[tkijvgf'd{"WPG."E1"1gpqxc."8l"4 :226"Ocftkf."Urckp"cn'tki] "Ygf"Hgd'36°27<39<65WVE"4246 wnni'rwintInfn ISO 14952-4:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The Iso Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 ii E*eqr[tkijvgf"d["WPG.'E1"1gpqxc."8I"4:226"Ocftkf.'Urckp"cm'tkijv'tgugtxgf+*"Ygf"Hgd’36*27<39<65"WVE*4246 @IsO2003—Allrightsreserved knni"cwintiInf ISO 14952-4:2003(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO technicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeer non-governmental,inliaisonwithISO,alsotakepartinthework.IsOcollaboratescloselywiththe International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO 14952-4 was prepared by Technical Committee ISO/T 20, Aircraft and space vehicles, Subcommittee Sc 14, Space systems and operations. fluid systems: Part 1: Vocabulary Part2:Cleanlinesslevels Part 3: Analytical procedures for the determination of nonvolatile residues and particulate contamination Part 4: Rough-cleaning processes Part 5: Drying processes Part 6: Precision-cleaning processes ii ISO 14952-4:2003(E) Introduction This part of isO 14952 defines rough-cleaning processes intended for use prior to precision-cleaning is to provide processes that can be used to achieve visibly clean parts and components iv @ ISO 2003-All rights reserved ISO 14952-4:2003(E) INTERNATIONAL STANDARD Space systems Surface cleanliness of fluid systems - Part 4: Rough-cleaning processes Scope This part of isO 14952 provides requirements related to rough-cleaning processes used to prepare parts and equipment, launch vehicles and spacecraft. Rough cleaning removes contaminants such as weld scale, heat-treat scale, corrosion, oxide films, oils, grease, shop soil, fuel and carbon deposits. Rough cleaning is considered a normal shop process and usually practice. This