BS ISO 22987:2020 pdf free.Ships and marine technology一 Laboratory test method for skin friction of antifouling paints by rotating drum.
BS ISO 22987 This document provides a laboratory test method to determine the skin-friction of antifouling paints coated on drums. The results of the laboratory-tested friction of painted drums over a certain period of time can be used for screening of antifouling paints and characterizing changes in friction for different antifouling paints, amongst other applications and other purposes depending on the user’s need.This document is applicable to both biocidal-based and biocide-free antifouling paints.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 1513, Paints and varnishes一Examination and preparation of test samples ISO 2808, Paints and varnishes一Determination offilm thickness ISO 3270， Paints and varnishes and their raw materials 一Temperatures and humidities for conditioning and testing ISO 4287, Geometrical Product Specifications (GPS) -一Surface texture: Profile method一Terms, definitions and surface texture parameters ISO 4288, Geometrical Product Specifications (GPS) 一Surface texture: Profile method – 一Rules and procedures for the assessment of surface texture ISO 15528, Paints, varnishes and raw materials for paints and varnishes一Sampling ASTM.D1141. Standard practice for the preparation of substitute ocean water.In case more than one specimen are tested within the same test chamber, the test chamber shall be divided into separate compartments for each specimen in such a manner that the turbulence of each specimen does not interfere with each other. The length/width of the compartments shall be at least 3 times larger than the diameter of the drums.a cylindrical test chamber, the diameter of which shall be at least 3 times larger than the diameter of the drum, to facilitate the generation of fully developed turbulent flow conditions with a Reynolds number (Re) higher than 3x 105; a chiller or a heater, to maintain the temperature if needed.BS ISO 22987 pdf downlaod.