(TSo 6625 International Standard INTERNATIONALORGANIZATIONFOR STANDARDIZATIONMEKAYHAPOAHAROPTAHM3AUMAHOCTAHAAPTW3ALMW-ORGANISATIONINTERNATIONALEDENORMALISATION Internal combustion engines - Piston rings - Oil control rings Moteurs a combustion interne - Segments de piston - Segments racleurs regulateurs d'huile First edition -- 1986-08-15 UDC 621.43-242.3 : 629.11 Ref. No. ISO 6625-1986 (E) 1986 ( Descriptors : road vehicles, internal combustion engines, piston rings, dimensions. Price based on 19 pages Not for Resale 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 6625 was prepared by Technical Committee ISO/TC 22, Road vehicles. 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 Organization for Standardization, 1986 ? Printed in Switzerland rking permited withoutlicense from IHS Not for Resale 1SO 6625-1986 (E) Contents Page oIntroduction Scope and field of application . 1 1 Ring types and designation examples 2 3 Common features . 6 4 8 5 Forcefactors 6 Dimensions Table 5 -- Dimensions of S-oil control rings . Table 6 - Dimensions of G-, D- and DV-oil control rings . 13 Table 7 - Dimensions of S-, G-, D- and DV-oil control rings with special ring width h1 = 4,75 mm (3/16 in) . . . . 17 Not for Resale