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BS EN ISO 4628-8:2012:2013 Edition

BS EN ISO 4628-8:2012:2013 Edition

$102.76

Paints and varnishes. Evaluation of degradation of coatings. Designation of quantity and size of defects, and of intensity of uniform changes in appearance – Assessment of degree of delamination and corrosion around a scribe or other artificial defect

Published By Publication Date Number of Pages
BSI 2013 18
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This part of ISO 4628 specifies a method for assessing delamination and corrosion around a scribe or other artificial defect on a coated panel or other coated test specimen, caused by a corrosive environment.

This part of ISO 4628 does not cover evaluation of pitting corrosion or pit depth.

NOTE 1 Examples of corrosive environments are artificial atmospheres such as salt spray, as used in the test method specified in ISO 9227,[7] and sea water immersion as used in the test method specified in ISO 15711.[8] Natural environments can also be used.

NOTE 2 The extent of other defects can also be determined at the same time as delamination and corrosion. Methods are given as follows:

  • blistering in accordance with ISO 4628-2;[2]

  • rusting in accordance with ISO 4628-3;[3]

  • cracking in accordance with ISO 4628-4;[4]

  • flaking in accordance with ISO 4628-5;[5]

  • filiform corrosion in accordance with ISO 4628-10.[6]

BS EN ISO 4628-8:2012
$102.76