BS ISO BRITISH STANDARD 6194-5:2008 Rotary-shaft lip-type seals incorporating elastomeric sealing elements - Part 5: Identification of visual imperfections ICS 23.100.60; 83.140.50 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO6194-5:2008 National foreword This British Standard is the UK implementation of ISO 6194-5:2008. It supersedesBS7780-5:1994whichis withdrawn. The UK participation in its preparation was entrusted to Technical Committee MCE/11, Fluid seals and their housings. A list of organizations represented on this committee can be obtained on request to its secretary. 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 cannot confer immunity from legal obligations. This British Standard was Amendments/corrigenda issued since publication published under the authority of the Standards Policy and Date Comments Strategy Committee on30May2008 BSI 2008 ISBN 9780580531828 BS IS0 6194-5:2008 ISO INTERNATIONAL STANDARD 6194-5 Second edition 2008-04-15 Rotary-shaft lip-type seals incorporating elastomericsealingelements: Part 5: Identificationofvisualimperfections Bagues d'étancheitea levrespourarbres tournants incorporant des élements d'etancheite en élastomere Partie5:ldentificationdes imperfectionsvisuelles Reference number ISO 6194-5:2008(E) ii BSISO6194-5:2008 Contents Page Foreword.. iv Introduction 1 Scope 2 Normative references.. 3 Terms and definitions 4 Characteristic imperfections.. 4.1 Definition of sealing lip critical area. 4.2 Type and name of imperfections..... 4.3 Typicalsealingedgeimperfections... 4.4 Typicalsealinglipimperfections(exceptsealingedge) 4.5 Typical spring imperfections..... 4.6 Typical outside diameter imperfections. 4.7 Typical protection lip imperfections.. 5 Identification statement (referenceto thispartof ISO6194) 8 Bibliography ili BS ISO 6194-5:2008 Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization. International Standards are drafted in accordance with the rules given in the ISO/lEC 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 ISO6194-5 was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee SC7, Sealing devices. This second edition cancels and replaces the first edition (isO 6194-5:1990) which has been technically revised. Iso 6194 consists of the following parts, under the general title Rotary-shaft lip-type seals incorporating elastomericsealingelements: Part1:Nominaldimensionsandtolerances Part2:Vocabulary Part3:Storage,handlingand installation Part4:Performancetestprocedures Part5:ldentificationofvisual imperfections iv BS ISO 6194-5:2008 Introduction shaft is stationary and the housing rotates. incorporated in the seal. Similarly, a designed interference fit between the outside diameter of the seal and the diameter of the housing bore retains the seal and prevents static leakage. Careful storage, handling, and proper installation of all seals are necessary to avoid hazards, both prior to and during installation, which can adversely affect service life. V