ISO INTERNATIONAL STANDARD 265-1 First edition 1988-12-15 INTERNATIONALORGANIZATIONFORSTANDARDIZATION ORGANISATION INTERNATIONALEDE NORMALISATION MEXKAYHAPOAHAROPrAHM3ALMAO CTAHAAPTW3ALMM Pipesandfittingsofplasticsmaterials Fittingsfordomesticandindustrialwastepipes Basicdimensions:Metricseries Part 1: Unplasticizedpoly(vinylchloride)(PVC-U) Tubesetraccordsenmatieresplastiques-Raccordspourcanalisationsd'évacuations domestiquesetindustrielles-Dimensionsdebase:Sériemetrique Partie 1:Polylchlorure de vinyle) non plastifie (PVC-U) Reference number ISO 265-1: 1988 (E) ISO 265-1 : 1988 (E) Foreword IsO(the International OrganizationforStandardization)isaworldwide 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. Iso collaborates closely with the International Electrotechnical Commission (IEC) on all mattersofelectrotechnicalstandardization. Draft International Standards adopted by the technical committees are circulated to the memberbodies for approval before their acceptance as International Standards by the Iso Council.They are approved in accordance with Iso procedures requlring at least 75 % approval by the member bodies voting. International Standard ISO265-1was preparedbyTechnical Committee ISO/TC 138, Plastics pipes, fittings and valves for the transport of fluids. This first edition of ISO 265-1 cancels and replaces ISO/R 265 : 1962, the scope of which has been revised to applytofittings with spigot ends, socket fittings,and socket fittings with curved (swept) entries made of unplasticized poly(vinyl chloride) (PVC-U). 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. International OrganizationforStandardizatlon,1988 Printed in Switzerland INTERNATIONALSTANDARD ISO265-1:1988(E) Pipes and fittings of plastics materials Fittings for domestic and industrial waste pipes Basic dimensions: Metric series - Part 1: Unplasticizedpoly(vinyl chloride) (PVC-U) Scopeandfield ofapplication The laying lengths (z lengths) given in this part of ISo 265 are intended to assist in the design of moulds, and are not intended This part of iSO 265 specifies the series of diameters and the to be used for quality control purposes. formulaeforcalculation of thedimensions commonto themain types of fittings with spigot ends, socket fittings, and socket NOTE ISO 265-2 will deal with fittings made of other plastics fittings with curved (swept) entries of unplasticized poly(vinyl materials, chloride) (PVC-U) for domestic and industrial waste pipes, regardless of the method of manufacture (with the exception of fittings fabricated from pipes) and of the composition. 2 References It does not give all the dimensions whioh are required to manufacture the fittings. These dimensions will be the subject iso161-1,Thermoplasticspipesforthetransportof fluids of future International Standards specifying the socket length, Nominal outside diameters and nominal pressures - Part1: spigotlength,etc. Metric series, It covers types and sizes of fittings and should be used as a guide for manufacturers and users, and as a basis for specific ISO3633,Unplasticized poly(vinylchloride)(PVC-U)pipes and standards. fittingsforsoilandwastedischarge(lowandhightemperature) systems insidebuildings--- Specifications,1) It may later be extended to include other types and sizes of fit- tings, when increasing use of plastics materials for piping ISo 8283-1,Plastics pipesand fittings -Dimensions of makes this necessary. Part1:Unplasticizedpoly/vinylchloride)(PVC-U)a