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BRITISH STANDARD BS EN ISO 77511997 Rubber and plastics hoses and hose assemblies Ratios of proof and burst pressure to design working pressure The European Standard EN ISO 77511997 has the status of a British Standard ICS 23.040.70 Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI BS EN ISO 77511997 This British Standard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 May 1997 BSI 09-1999 ISBN 0 580 27502 7 National foreword This British Standard is the English language version of EN ISO 77511997. It is identical with ISO 77511991. It supersedes BS 65961992 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/66, Rubber and plastics tubing, hoses and hose assemblies, which has the responsibility to aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests ined; 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 Attention is drawn to the fact that Annex ZA lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, pages ii to iv, pages 1 and 2 and a back cover. This standard has been updated see copyright date and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m BS EN ISO 77511997 BSI 09-1999i Contents Page National forewordInside front cover Foreword2 Forewordiii Text of ISO 77511 Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m ii blank Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 7751 January 1997 ICS 23.040.70 Descriptors See ISO document English version Rubber and plastics hoses and hose assemblies Ratios of proof and burst pressure to design working pressure ISO 77511991 Tuyaux et flexibles en caoutchouc et en plastique Rapports des pressions d’preuve et d’clatement la pression de service ISO 77511991 Gummi und Kunststoffschluche und schlauchleitungen Verhltnisse von Prf und Berstdruck zum Betriebsdruck ISO 77511991 This European Standard was approved by CEN on 1996-12-29. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this 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 Central Secretariat 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat rue de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN ISO 77511997 E Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN ISO 77511997 BSI 09-1999 2 Foreword The text of the International Standard from Technical Committee ISO/TC 45 “Rubber and rubber products” of the International Organization for Standardization ISO has been taken over as an European Standard by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”, the secretariat of which is held by BSI. 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 July 1997, and conflicting national standards shall be withdrawn at the latest by July 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 77511991 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA normative. Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN ISO 77511997 ii BSI 09-1999 Contents Page Foreword2 Forewordiii 1Scope1 2Normative reference1 3Proof pressure ratio1 4Minimum burst pressure ratio1 Annex ZA normative Normative references to international publications with their relevant European publications2 Table 1 Ratios of proof and minimum burst pressure to design working pressure1 Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN ISO 77511997 BSI 09-1999iii 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. 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. International Standard ISO 7751 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Sub-Committee SC 1, Hoses rubber and plastics. This second edition cancels and replaces the first edition ISO 77511983, of which it constitutes a technical revision. Descriptors Rubber products, plastics products, hoses, rubber hoses, tests, high pressure tests. Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m iv blank Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN ISO 77511997 BSI 09-19991 1 Scope This International Standard specifies ratios of proof pressure and minimum burst pressure to design working pressure for various categories of hose service. The s and procedures to per the proof and burst tests are specified in ISO 1402. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 14021984, Rubber and plastics hoses and hose assemblies Hydrostatic testing. 3 Proof pressure ratio The ratio of proof pressure to design working pressure shall, unless otherwise specified, be in accordance with Table 1. 4 Minimum burst pressure ratio The ratio of minimum burst pressure to design working pressure shall, unless otherwise specified, be in accordance with Table 1. Table 1 Ratios of proof and minimum burst pressure to design working pressure No.Type of service for guidance only Ratio of proof pressure to design working pressure Ratio of minimum burst pressure to design working pressure 1Water hose, maximum working pressure 1 MPa1,53,0 2 Hose for all other liquids, solid materials suspended in liquids or air, and water hose, working pressure over 1 MPa 2,04,0 3Hose for compressed air and other gases2,04,0 4 Hose for liquid media that change into the gaseous state when subjected to a reduction in pressure, i.e. released to atmosphere 2,55,0 5Steam hose5,010,0 6Jetting hose1,52,5 Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m EN ISO 77511997 2 BSI 09-1999 Annex ZA normative Normative references to international publications with their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. PublicationYearTitleENYear ISO 14021994Rubber and plastics hoses and hose assemblies Hydrostatic testing EN ISO 14021996 Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m blank Licensed Copy sheffieldun sheffieldun, na, Tue Oct 10 042503 BST 2006, Uncontrolled Copy, c BSI w w w . b z f x w . c o m BS EN ISO 77511997 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. 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