BS ISO 22462:2020 pdf free.Metallic and other inorganic coatings一Test method for the friction coefficient measurement of chemical conversion coatings.
BS ISO 22462 1 Scope This document specifies a test method to measure the friction coefficient of chemical conversion coating sheet products and coiled products. This document is applicable to measure or compare the friction properties of hot-dip galvanized, lubricated and resin coated steel sheet, when tested under the same conditions. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 377,Steel and steel products一Location and preparation of samples and test pieces for mechanical testing ISO 27831-1, Metallic and other inorganic coatings一Cleaning and preparation of metal surfaces一Part 1: Ferrous metals and alloys IEC 60648, Method of test for coefficients of friction of plastic film and sheeting for use as electrical insulation.Before the test, clean the test pieces and the friction block with a proper solvent and dry them at room temperature. Using this process, all dirt and foreign matter are removed. An alkaline solution shall not  be performed during the treatment process because chemical conversion coatings can be broken down by alkali. After cleaning, spread a few drops of lubricant on the surface of the test pieces and then wipe them with a clean cloth.Set the speed and normal force to desirable values. The testing table moves in longitudinal and transverse directions when the test starts. Therefore, it is recommended to check whether the test table is in the correct position. Place and fix the test pieces on the test piece holder. The test piece holder is necessary to support and fix the test piece at a designated position during the test. It is essential to keep a flat surface to apply the load uniformly. To ensure test reliability, there should be no gap between the test piece holder and the test piece. Check whether the necessary contact condition is satisfied between the test piece and the friction block. BS ISO 22462 pdf download.