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Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, a…

Overview EN ISO 4628-7:2016 (ISO 4628-7:2016) - published by CEN - defines the velvet method for assessing the degree of chalking on exterior paints and varnishes. The method is intended mainly for r…

Paints and varnishes - Evaluation of degradation of coatings - Designation of quantity and size of defects, a…

Overview EN ISO 4628-7:2016 (ISO 4628-7:2016) - published by CEN - defines the velvet method for assessing the degree of chalking on exterior paints and varnishes. The method is intended mainly for r…

Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, a…

Overview ISO 4628-7:2016 - Paints and varnishes - Assessment of degree of chalking by velvet method - specifies a visual/physical test for chalking (formation of loosely adherent powder) on exterior…

Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity and size of defects, a…