BS-ISO-14952-4-2003.pdf
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1、BRITISH STANDARD AEROSPACE SERIES BS ISO 14952-4:2003 Space systems Surface cleanliness of fluid systems Part 4: Rough-cleaning processes ICS 49.080; 49.140 ? Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:41:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS ISO 14952-4:2003 This British S
2、tandard was published under the authority of the Standards Policy and Strategy Committee on 2 March 2004 BSI 2 March 2004 ISBN 0 580 43465 6 National foreword This British Standard reproduces verbatim ISO 14952-4:2003 and implements it as the UK national standard. The UK participation in its prepara
3、tion was entrusted to Technical Committee ACE/68, Space systems and operations, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referr
4、ed to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisi
5、ons of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, o
6、r proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 4, an inside back cover and
7、 a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:41:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Reference number ISO 14
8、952-4:2003(E) OSI 3002 INTERNATIONAL STANDARD ISO 14952-4 First edition 2003-11-15 Space systems Surface cleanliness of fluid systems Part 4: Rough-cleaning processes Systmes spatiaux Propret des surfaces en contact avec des fluides Partie 4: Procds de nettoyage grossier BS ISO 149524:2003 Licensed
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14、r ihgtsser edevr BS ISO 149524:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:41:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-25941 O4:(3002E) I SO 3002 All irhgts seredevr iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national
15、 standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. Internationa
16、l organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules
17、given in the ISO/IEC 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 lea
18、st 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/TC 2
19、0, Aircraft and space vehicles, Subcommittee SC 14, Space systems and operations. ISO 14952 consists of the following parts, under the general title Space systems Surface cleanliness of fluid systems: Part 1: Vocabulary Part 2: Cleanliness levels Part 3: Analytical procedures for the determination o
20、f nonvolatile residues and particulate contamination Part 4: Rough-cleaning processes Part 5: Drying processes Part 6: Precision-cleaning processes BS ISO 149524:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:41:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI IS-25941 O4:(3002E) iv I S
21、O 3002 All irhgts seredevr Introduction This part of ISO 14952 defines rough-cleaning processes intended for use prior to precision-cleaning processes for equipment and components used in space fluid systems. The purpose of this part of ISO 14952 is to provide processes that can be used to achieve v
22、isibly clean parts and components. BS ISO 149524:2003 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 26 14:41:23 GMT+00:00 2006, Uncontrolled Copy, (c) BSI INTENRATIONAL TSANDADR IS-25941 O4:(3002E) I SO 3002 All irhgts seredevr 1 Space systems Surface cleanliness of fluid systems Part 4: Rough
23、-cleaning processes 1 Scope This part of ISO 14952 provides requirements related to rough-cleaning processes used to prepare parts and components for precision cleaning. It identifies precleaning processes that can be used for ground support equipment, launch vehicles and spacecraft. Rough cleaning
24、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 does not require special environmental controls, packaging, handling or storage beyond accepted good pr
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