GSO ISO 10309:2013
金属涂层 孔隙率测试 Feroxyl 测试

Metallic coatings -- Porosity tests -- Ferroxyl test

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标准号

GSO ISO 10309:2013

发布

2013年

发布单位

GSO

当前最新

GSO ISO 10309:2013

 

 

适用范围

This International Standard specifies a method of revealing pores or other discontinuities, when testing metallic coatings, that are not visibly affected by ferricyanide and chloride ions during the test period and that are cathodic to iron and steel. This method is especially useful for thick, hard chromium coatings used for wear resistance. NOTE 1 With some coating materials a very thin layer is dissolved by the sodium chloride solution during a 10 minute application period (see 5.2.3). The impact of such dissolution is that potential porosity, i.e. pores that have been covered over by very thin layers, are sometimes re-exposed. Experience has shown that such potential porosity is frequently re-exposed during actual service.

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