The ISO 21227-2:2006 standard "Paints and varnish - Evaluation of defects on coating surfaces using Optical inspection imagery, Part 2: Evaluation procedures for heavy impact stone chip testing" details the procedure for evaluating damage to coatings in multi-impact stone chip testing using Optical inspection imagery technology. This standard provides an objective, quantitative and repeatability assessment method for the damage resistance of surface coatings under simulated stone chip Impact, improving the subjectivity and uncertainty of traditional artificial vision assessments. This standard applies to ISO 20567-1 based testing and is widely used for quality control and performance evaluation of coatings and varnishes.
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