Coil coated metals. Test methods - Chalking (Helmen method)
Coil coated metals. Test methods - Chalking (Helmen method)
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What is BS EN 13523-14 - Chalking (Helmen method) test of coil coated metals about?
EN 13523 series is a European Series that discusses the test methods for coil coated metals. BS EN 13523-14 is the fourteenth part of the multi-part series that specifies the procedure for determining objectively the chalking resulting from natural or artificial weathering of an organic coating on a metallic substrate. Under BS EN 13523-14 the advantage of using this procedure for measuring the chalking of an organic coating is that the result can be read off immediately on an instrument. Subjective judgment 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. Note1: The test method under BS EN 13523-14 does not apply to embossed coatings. In the case of textured coatings, the degree of texture can influence readings. Also, dirt collection can influence readings on outdoor weathered specimens. Note2: Different methods for assessing chalking are in use. The results of these different methods are not comparable.
Who is BS EN 13523-14 - Chalking (Helmen method) test of coil coa...
Mentioned in the description and other BS standards
