GB/T 17721-1999
ActiveMetallic coatings--Porosity tests--Ferroxyl test
金属覆盖层 孔隙率试验 铁试剂试验
Application Summary AI generated
This standard specifies the ferroxyl test method for detecting porosity in metallic coatings on steel substrates. It is applied in manufacturing and quality control to assess the continuity and protective quality of coatings like nickel, chromium, or tin on steel parts. The test is commonly used for automotive, hardware, and industrial components where corrosion resistance is critical.
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