BS EN ISO 4628-8:2012

1   Scope 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.