ISO 9679:2006

INTERNATIONAL ISO
STANDARD 9679
First edition
2006-08-15
Aerospace — Clamps for fluid systems —
Test methods
Aéronautique et espace — Colliers pour systèmes de fluides —
Méthodes d'essai

Reference number
ISO 9679:2006(E)
©
ISO 2006

---------------------- Page: 1 ----------------------
ISO 9679:2006(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 shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
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.
© ISO 2006
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 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 copyright@iso.org
Web www.iso.org
Published in Switzerland
©
ii ISO 2006 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 9679:2006(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
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. 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 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 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 9679 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 10,
Aerospace fluid systems and components.
©
ISO 2006 – All rights reserved iii

---------------------- Page: 3 ----------------------
.
iv

---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 9679:2006(E)
Aerospace — Clamps for fluid systems — Test methods
1Scope
This International Standard specifies the test methods and procedures to be used for the qualification and
comparison of support or retention devices used in the installation of aerospace fluid systems.
It is applicable when reference is made to parts standards, procurement specifications, or other definition
documents.
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.
ISO 1431-1:2004, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and
dynamic strain testing
ISO 2951, Vulcanized rubber — Determination of insulation resistance
ISO 4892-3, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps
3 General requirements
3.1 The tests required by this specification relate only to the qualification of the device. They do not infer
qualification of the service, installation or techniques used. All devices tested shall be in conformance with the
applicable parts standard or development criteria.
◦
3.2 Unless otherwise specified, all tests should be conducted at room temperature (25± 10) C.
4 Material tests
4.1 General
All materials used shall be in conformance with the specifications specified in the applicable parts standard. In
addition, the following tests may be required by the parts standard, procurement specification or contract.
4.2 Ozone resistance
All non-metallic materials, vulcanized or thermoplastic, shall be free of cracking when tested in accordance with
−6
ISO 1431-1:2004, procurement B, at a volume fraction of ozone of 6× 10 , under an 80 % strain for 6h, and
◦
at a temperature of (40± 2) C.
©
ISO 2006 – All rights reserved 1

---------------------- Page: 5 ----------------------
ISO 9679:2006(E)
4.3 Flame resistance
4.3.1 General
All non-metallic materials shall be tested for flammability by means of a vertical burn test, as specified in this
subclause. The flame source shall be a Bunsen Burner or a similar burner, having a normal diameter of 10 mm
(0,40 in). The burner shall be adjusted to provide a 38 mm (1,52 in) high flame of blue intensity. Verify flame
◦
temperature to be minimum of 849 C at the centre of the flame, by use of thermocouple.
4.3.2 Test specimens
Specimens shall be actual components mounted in an “as used” condition as close as possible to their use in
an aircraft. All test specimens shall include the necessary mounting hardware and tubing. See Figure 1 for
examples.
4.3.3 Preconditioning
◦ ◦
All specimens shall be preconditioned at 20 C to 25 C at (50± 5) % relative humidity for a period of 24 h prior
to testing.
4.3.4 Test
Remove specimens, one at a time, from the preconditioning chamber immediately before performing the test.
◦
Position the specimens 19 mm above the burner so the flame strikes the specimen at approximately 90 . Apply
the flame for 12 s and remove. The average burn time of three specimens after removal of the flame shall not
exceed 15 s. Dripping from the burning specimens shall not burn for more than 5s after dropping.
4.4 Insulation properties
If necessary for a particular installation, the insulation value of vulcanized rubber shall be determined by
referring to I
...