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Overview EN ISO 22557:2020 (identical to ISO 22557:2019) specifies a standardized scratch test using a spring‑loaded pen to determine the resistance of paints and varnishes (coatings) to scratches ca…
Overview ISO 22557:2019 - Paints and varnishes: Scratch test using a spring-loaded pen - specifies a standardized manual method to determine a coating’s resistance to scratches introduced by a loaded…