EN IS0 7751 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM November 2016 ICS23.040.70 Supersedes EN ISO 7751:1997 English Version Rubber and plastics hoses and hose assemblies - Ratios of (IS0 7751:2016) Tuyaux et flexibles en caoutchouc et en plastique - Gummi- und Kunststoffschlauche und - Rapports des pressions d'epreuve et de rupture a la schlauchleitungen - Verhaltnisse von Prif- und pression maximale de service (IS0 7751:2016) Berstdruck zum Betriebsdruck (IS0 7751:2016) This European Standard was approved by CEN on 9 October 2016. European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the samestatus as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FURNORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels @2016CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO 7751:2016 E worldwide for CEN national Members. EN IS0 7751:2016 (E) European foreword This document (ENIS07751:2016)has been preparedbyTechnical CommitteeIS0/TC 45"Rubber and rubberproducts"in collaboration withTechnical CommitteeCEN/TC218“Rubber andplasticshoses andhoseassemblies"thesecretariatofwhichisheldbyBsl. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2017, and conflicting national standards shall be withdrawn at the latest by May 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN IS0 7751:1997. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,Greece,Hungary,Iceland, Ireland, Italy,Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice The textof IS07751:2016has beenapproved by CEN as ENIS07751:2016without any modification. IS0 7751:2016(E) Contents Page Foreword ..iv 1 Scope ..1 2 Normative references 3 Terms and definitions 4 Proof pressure ratio 5 Minimum burst pressure ratio Bibliography .3 @ IS0 2016 - All rights reserved iii