This standard uses an optical microscope to examine cross-sections of test specimens under a microscope to determine whether the metal coating, oxide layer, or surface layer are present.
KS D 8519-2009 history
2015KS D 8519-2015 Metallic and oxide coating-Measurement of coating thickness-Microscopical method
2009KS D 8519-2009 Metallic and oxide coating-Measurement of coating thickness-Microscopical method