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BSI BS EN 13523-14:2023

Coil coated metals. Test methods -- Chalking (Helmen method)
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BSI BS EN 13523-14:2023

Coil coated metals. Test methods -- Chalking (Helmen method)

PUBLISH DATE 2023
PAGES 12
BSI BS EN 13523-14:2023
This document describes the procedure for determining objectively the chalking resulting from natural or artificial weathering of an organic coating on a metallic substrate. The advantage of this procedure for measuring chalking of an organic coating is that the result can be read off immediately on an instrument. Subjective judgement by visual comparison of test specimens with reference specimens is not necessary. Reproducible results can only be obtained by careful execution of the test. Special attention is paid to the adhesive tape and its application to the test surface. The test method is not applicable to embossed coatings. In the case of textured coatings, the degree of texture will influence readings. Also, dirt collection can influence readings on outdoor weathered specimens. NOTE Different methods for assessing chalking are in use. The results of these different methods are not comparable.
SDO BSI: British Standards Institution
Document Number EN 13523-14
Publication Date March 20, 2023
Language en - English
Page Count 12
Revision Level
Supercedes
Committee STI/21
Publish Date Document Id Type View
March 20, 2023 BS EN 13523-14:2023 Revision
June 30, 2014 BS EN 13523-14:2014 Revision
June 15, 2001 BS EN 13523-14:2001 Revision