ISO INTERNATIONAL STANDARD 9679 First edition 2006-08-15 Aerospace Clamps for fluid systems Test methods Aéronautique et espace - Colliers pour systemes de fluides - Methodes d'essai Reference number X ISO 9679:2006(E) ISO @ ISO 2006 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 established has the right to be represented on that committee. International organizations, governmental and Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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 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 ii ISO 9679:2006(E) INTERNATIONAL STANDARD Aerospace Clamps for fluid systems Test methods 1 Scope 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 (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 3 General requirements 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 at a temperature of (40 ± 2) °C. @ ISO 2006 - All rights reserved 1 ISO 9679:2006(E) 4.3 Flame resistance 4.3.1 General All non-metallicmaterialsshallbetestedforflammabilitybymeansofaverticalburntest,asspecifiedinthis 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 examples 4.3.3 Preconditioning to testing 4.3.4Test Remove specimens, one at a time, from the preconditioning chamber immediately before performing the test the flame for 12 s and remove. The average burn time of three specimens after removal of the flame shall not 4.4 Insulation properties If necessary for a particular installation, the insulation value of vulcanized rubber shall be determined by referring to ISO 2951. 4.5 Ultraviolet resistance Various plastic and organic elastomer materials exposed to sunlight and some electrical applications can be susceptible to ultraviolet attack. When these types of material are used on exterior applications, they should be testedinaccordancewithlsO4892-3. 4.6Titanium compatibility 4.6.1 Principle Where clamping devices are employed to support titanium tube installations, the sheathing or other materials in direct contact with the tubing shall be tested to determine if they have any chemical effect on the tubing. 4.6.2 Test methods between the test samples. The tubing, with the clamps mounted, shall be fil