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1、 Reference number ISO 12319:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 12319 First edition 2006-09-15 Aerospace P (loop style) clamps Procurement specification Aronautique et espace Colliers en P (en boucle) Spcification dapprovisionnement Copyright International Organization for Standardization Pr
2、ovided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes l
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4、 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
5、 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. ISO 2006 All rights reserved. Unless otherwise specified, no part of this publication may be r
6、eproduced 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 ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41
7、22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/200
8、7 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 1 4 Requirements 2 4.1 Qualification 2 4.2 Materials 3 4.3 C
9、onfiguration 3 4.4 Dimensional requirements. 3 4.5 Mass. 3 4.6 Surface appearance 3 4.7 Surface treatment . 3 4.8 Marking 3 4.9 Vibration and transmissibility . 3 4.10 Retention . 3 4.11 Titanium compatibility 4 4.12 Flame resistance. 4 4.13 Ozone resistance 4 4.14 Ultraviolet resistance 4 4.15 Insu
10、lation properties 4 5 Quality assurance. 4 5.1 Responsibility for inspection 4 5.2 Classification of inspection. 4 5.3 Qualification inspection. 4 5.4 Acceptance inspection. 7 6 Packaging 7 7 Certification. 7 Annex A (normative) Equivalent national qualification procedure. 8 Copyright International
11、Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the Int
12、ernational 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 technical committees. Each member body interested in a subject for which a technical committee ha
13、s been established has the right to be represented on that committee. International 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
14、standardization. International Standards are drafted in accordance with the rules 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 bodie
15、s 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 o
16、r all such patent rights. ISO 12319 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standard
17、s 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) ISO 2006 All rights reserved v Introduction This International Standard establishes the basic performance and quality requirements for P (loop style) clamps
18、for use in aerospace fluid systems. The procurement requirements are intended to ensure that clamps which are procured in accordance with this specification are of the same quality as the clamps used during the original qualification testing. Compliance with these test and procurement requirements i
19、s necessary for clamps that are used in fluid systems where a malfunction would affect the safety of flight. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reprod
20、uction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license
21、from IHS -,-,- INTERNATIONAL STANDARD ISO 12319:2006(E) ISO 2006 All rights reserved 1 Aerospace P (loop style) clamps Procurement specification 1 Scope This International Standard specifies the requirements for the procurement and quality assurance of P (loop style) clamps used in the installation
22、of aerospace fluid systems. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies
23、. ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection ISO 2951, Vulcanized rubber Determination of insulation resistance ISO 4892-3, Plastics Methods of exposure to laboratory light sources Part 3:
24、Fluorescent UV lamps ISO 9679, Aerospace Clamps for fluid systems Test methods EN 9100, Aerospace series Quality management systems Requirements (based on ISO 9001:2000) and quality systems Model for quality assurance in design, development, production, installation and servicing (based on ISO 9001:
25、1994) EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 inspection lot clamps from a single production batch having the same number of def
26、inition document 3.2 definition document document specifying directly all the requirements for clamps NOTE The definition document may be an International Standard, an in-house standard or a drawing. Copyright International Organization for Standardization Provided by IHS under license with ISO Lice
27、nsee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) 2 ISO 2006 All rights reserved 3.3 acceptance quality level AQL maximum percent defective (or the maximum number of defects per h
28、undred units) that, for the purpose of sampling inspection, can be considered satisfactory as a process average NOTE It can also be the quality level which in a sampling plan corresponds to a specified but relatively high probability of acceptance. 3.4 burr raised sharp edge, frequently with a wane
29、on the opposite side ISO 8785:1998 3.5 foreign material extraneous matter on the surface of the clamp or in the surface of the cushion EXAMPLES Contamination, dirt, slivers. 3.6 simple random sampling sampling of n items from a population of N items in such a way that all possible combinations of n
30、items have the same probability of being chosen 3.7 major defect defect, other than critical, that is likely to result in a failure or to reduce materially the usability of the considered product for its intended purpose 3.8 minor defect defect that is not likely to reduce materially the usability o
31、f the considered product for its intended purpose, or that represents a departure from established specification having little bearing on the effective use or operation of this product 4 Requirements 4.1 Qualification 4.1.1 General Clamps supplied in accordance with this International Standard shall
32、 be representative of products which have been subjected to and which have successfully passed the requirements and tests specified in this International Standard. 4.1.2 Manufacturer qualification Manufacturer approval shall be granted by outside agency procedure (see Table A.1, Procedure 1). 4.1.3
33、Product qualification Product approval shall be granted by outside agency procedure (see Table A.1, Procedure 2). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo r
34、eproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) ISO 2006 All rights reserved 3 4.2 Materials The clamp materials shall be as described in the definition document. 4.3 Configuration The clamps shall be installed on a mandrel having a diameter within 0,025 mm of th
35、e specified diameter. With a shim placed between the clamp feet, as specified in the part standard, having the same dimensions 0,025 mm thick, all dimensions shall be within those specified in the part standard. Mounting hole alignment shall be within 0,254 mm. 4.4 Dimensional requirements The clamp
36、 dimensional requirements shall be as described in the definition document. 4.5 Mass The clamp masses shall be as described in the definition document. 4.6 Surface appearance Workmanship shall be of a sufficiently high grade to ensure that the clamps are of uniform quality, free from burrs, slivers,
37、 sharp edges or other defects which would affect their services. 4.7 Surface treatment The clamp surface treatment shall be as described in the definition document. 4.8 Marking Verify that each clamp is identified according to the part standard with the standard number, size and manufacturers name o
38、r trademark. 4.9 Vibration and transmissibility When the clamps are tested in accordance with ISO 9679, they shall not exhibit any evidence of deterioration of the sheathing or cushion, nor cracking or separation of metal components, and shall maintain minimum retention values. 4.10 Retention When t
39、he clamps are tested in accordance with ISO 9679, the minimum retention values shall be according to Table 1. Table 1 Minimum retention values Tube diameter Minimum axial force kg 12 mm (0,5 in) 7,0 19 mm (0,75 in) 12,0 Fixed type clamps 25 mm (1 in) 16,0 Sliding type clamps If the device is require
40、d to permit tube movement, a force of between 0,46 kg and 4,5 kg should be recorded. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking per
41、mitted without license from IHS -,-,- ISO 12319:2006(E) 4 ISO 2006 All rights reserved 4.11 Titanium compatibility When the clamps are tested in accordance with ISO 9679, there shall be no evidence of cracking, pitting or abrasion of the titanium tube when clamps are subject to this requirement. 4.1
42、2 Flame resistance For non-metallic clamps using non-metallic components, ISO 9679 applies. 4.13 Ozone resistance Ozone resistance is required for clamps utilizing elastomer sheathing or cushion (except EPDM elastomer due to its inherent ozone-resistant properties). When the clamps are tested in acc
43、ordance with ISO 9679, they shall be resistant to a volume fraction of ozone of 6 106 under an 80 % strain. 4.14 Ultraviolet resistance If required, determine resistance to ultraviolet attack of non-metallics, such as some plastics and elastomers, in accordance with ISO 4892-3. 4.15 Insulation prope
44、rties If required, determine the electrical insulation properties of the electrical sheathing or cushion in accordance with ISO 2951. 5 Quality assurance 5.1 Responsibility for inspection Unless otherwise specified in the contract, or purchase order, the contractor is responsible for the performance
45、 of all inspection requirements as specified in this International Standard. 5.2 Classification of inspection The examining and testing of clamps shall be classified as follows: qualification inspection (see 5.3); acceptance inspection (see 5.4). 5.3 Qualification inspection 5.3.1 Samples See Table
46、2. Unless otherwise specified by the test specification, samples for qualification testing shall consist of 12 clamps each per part standard of the following sizes. Metric sizes: 06, 10, 14, 16, 20, 28, 32 and 38 Inch sizes: -4, -6, -8, -10, -12, -16, -24 and -32. Copyright International Organizatio
47、n for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/20/2007 07:39:28 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 12319:2006(E) ISO 2006 All rights reserved 5 Table 2 Qualification test sequence and number of test specimens in sample Clamp sample number Characteristic Defined in 1 2 3 4 5 6 7 8 9 10 11 12 Remarks Configuration 4.3 Dimensions 4.4 Mass 4.5 Surface appearance 4.6 Surface treatment 4.7 Markin