ISO INTERNATIONAL STANDARD 7005-3 First edition 1988-02-15 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION so ORGANISATION INTERNATIONALE DE NORMALISATION MEKAYHAPOAHAA OPTAHW3ALMA NO CTAHAAPTV3ALWM Metallic flanges - Part 3: Copperalloyandcompositeflanges Bridesmetalliques- Partie 3: Brides en alliages de cuivre et brides composites Reference number ISO 7005-3 : 1988 (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 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, govern- mental and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. They are approved in accordance with ISO procedures requiring at least 75 % approval by the member bodies voting. International Standard ISO 7005-3 was prepared by Technical Committee ISO/TC 5, Ferrous metal pipes and metallic fittings. Users should note that all International Standards undergo revision from time to time and that any reference made herein to any other International Standard implies its latest edition, unless otherwise stated. InternationalOrganization for Standardization,1988 Printed in Switzerland ii ISO 7005-3:1988 (E) Contents Page oIntroduction 1 1 Scopeandfieldofapplicatior 2Definitionsanddesignation 2 3Pressure/temperature (p/T) ratings. 2 4Materials. 2 5Dimensions 6 Jointfacings and surfacefinish. 3 7 Drilling and spot-facing 3 8Tolerances 3 9Marking 4 10Inspectionandtest 4 11Information tobe supplied bythe purchaser 4 12Limitations for flanges attached by soft solder or silver brazing 22 Bibliography 25 Annex Applicationand installation 26 ili