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Overview EN ISO 21227-4:2008 (ISO 21227-4:2008) specifies a digital optical-imaging procedure for the evaluation of filiform corrosion on coated surfaces. The standard describes only the image-based…
Overview ISO 21227-4:2008 - Paints and varnishes - Evaluation of defects on coated surfaces using optical imaging - Part 4: Evaluation of filiform corrosion describes a standardized, image-based proc…