BS ISO BRITISH STANDARD 6118:2006 Road vehicles Elastomeric cups and seals for cylinders for hydraulic braking systems using a non-petroleum base hydraulic brake fluid (service temperature 70 °C max.) ICS 43.040.40; 83.140.50 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO6118:2006 National foreword ThisBritishStandard reproducesverbatimISO6118:2006and implements it as theUK national standard. The UK participation in its preparation was entrusted to Technical Committee PRI/69, Components and fluids for vehicle braking systems, which has the responsibility to: aid enquirers to understand thetext; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. 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 referred to inthis document maybefoundin the BSI Catalogueunder the sectionentitled "International Standards Correspondence Index", or by using the“Search" facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not ofitself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages i to iv, pages 1 to 16, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. This British Standard was Amendmentsissuedsincepublication published under the authority of the Standards Policy and Amd. No. Date Comments Strategy Committee on 31August 2006 BSI 2006 ISBN 0580487318 BS ISO 6118:2006 INTERNATIONAL ISO STANDARD 6118 Second edition 2006-07-15 Road vehicles Elastomeric cups and seals for cylinders for hydraulic braking systems usinganon-petroleumbase hydraulic brake fluid (service temperature 70 °C max.) Vehiculesroutiers-Coupelles et joints en élastomere pourcylindresde systemes de freinage hydrauliques utilisant un liquide de frein a base nonpetroliere(temperaturemaximaled'utilisation:7oC) Reference number ISO 6118:2006(E) ISO ii BS ISO 6118:2006 Contents Page 1 Scope 2 Normative references 3 Termsanddefinitions, 4 General requirements 2 4.1 Workmanship and finish 2 4.2 Marking 2 4.3 Packaging . 2 4.4 Sampling 2 5 Test requirements 2 5.1 Resistancetofluidatelevatedtemperature 2 5.2 Precipitation 2 5.3 Wheelcylinderseals heatpressurestroking 2 5.4 Master cylinder seals heatpressure stroking 3 5.5 Low temperature performance... 4 5.6 Oven ageing . 4 5.7 Corrosion 5 5.8 Storage corrosion test 5 6 Testprocedures 5 6.1 Resistancetofluid at elevated temperatureDimensional test ... 5 6.2 Precipitationtest 7 6.3 Wheelcylindersealsheatpressurestroking 8 6.4 Mastercylindersealsheatpressurestroking 10 6.5 Low temperature performance ...... 12 6.6 Oven ageing ... 13 6.7 Hardnessdetermination 13 6.8 Corrosiontest... 13 6.9 Storagecorrosiontest 15 Bibliography 16 ili BSIS06118:2006 Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies 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. 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