This standard specifies the method for measuring the local thickness of metal coatings, oxide film layers and enamel or glass enamel coatings by examining cross-sections with an optical microscope.
GB/T 6462-2005 Referenced Document
GB/T 12334 Metallic and other inorganic coatings--Definitions and conventions concerning the measurement of thickness
GB/T 6462-2005 history
2005GB/T 6462-2005 Metallic and oxide coatings-Measurement of coating thinckness-Microscopical method
1986GB/T 6462-1986 Metallic and oxide coatings--Measurement of coating thickness--Microscopical method