6315 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAA OPFAHM3ALMA HO CTAHAAPTW3AUWVORGANISATION INTERNATIONALE DE NORMALISATION Road vehicles - Brake linings --- Seizure to ferrous mating surface due to corrosion - Test procedure Vehicules routiers - Garnitures de freins -Adherence de la surface ferreuse due a la corrosion--Methode d'essai First edition - 1980-07-01 ISO 6315-1980 (E) UDC 621.113-597.2 : 620.193 Ref.No.ISO6315-1980(E) Descriptors : road vehicles, brake linings, brake shoes, tests, corrosion tests, adhesion tests. Price based on 2 pages Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards institutes (iso member bodies). The work of developing Inter- national Standards is carried out through Iso technical committees. Every member body interested in a subject for which a technical committee has been set up 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. 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. International Standard ISO6315 was developed by Technical Committee ISO/TC 22 Roadvehicles,andwascirculatedtothememberbodiesinNovember1978. It has been approved by the member bodies of the following countries : Austria Ireland Spain Belgium Italy Sweden Bulgaria Japan Switzerland Czechoslovakia Korea, Dem. P. Rep. of Turkey Denmark Mexico United Kingdom France Netherlands USA Germany, F. R. Romania USSR India SouthAfrica,Rep.of Yugoslavia No member body expressed disapproval of the document. InternationalOrganizationforStandardization,1980 Printed inSwitzerland Coovriaht Intermational Oraanization for Standardization INTERNATIONALSTANDARD ISO6315-1980 (E) Road vehicles - Brake linings -- Seizure to ferrous mating surface due to corrosion - Test procedure oIntroduction 3 Samplingand preparation Vehicles operating in wet weather may be parked with brakes 3.1 Newcomponents "on" for considerable periods. The wet conditions are con- ducive to corrosion which may result in a bond forming be- tween lining and mating surface. 3.1.1 Drumbrakes If of sufficient strength, the bond may be intact after brake Six representative full size linings, or parts of such linings release thus restraining the road wheels. (width equal to shoe width, with maximum of 80 mm, and length equal to lining sample width), two shoes and one drum are required. 1 Scopeand field of application When linings are assembled to shoes, the assemblies shall be This International Standard specifies a laboratory method for ground to a radius that will ensure full area contact with the conditioning brake linings in an environment that will promote drum braking path. corrosion, and a test method to assess the strength of bond formed by corrosion. For comparison of lining behaviours, it is The contacting surfaces of the linings and drum shall be clean, essential that the material and condition of ferrous mating sur- free from dust and of condition and finish that are represen- facesbe constant and repeatable. tative of normal manufacturing standards. This International Standard applies to drum brake linings and 3.1.2Discbrakes disc brake pads fitted to the brakes of road vehicles. They may be tested in new or used condition. Six representative pads and one disc are required. Pad anddisc contactsurfacesmustbeflat, 2 Test apparatus The contacting surfaces of the pads and disc shall be The required apparatus shall consist of : clean, free from dust and of condition and finish that are 2.1 for drum brakes, a means such as screws and torque representative of normal manufacturing standards. wrench, by which the shoes with linings may be maintained in contact with thedrum at a knownpressure; 3.2Usedcomponents 2.2 for drum br