GB/T 6462-2025: Metallic and oxide coatings - Measurement of coating thickness - Microscopical method

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Scope

This document describes a method for measuring the local thickness of metallic
coatings, oxide films, and enamel or glass enamel coatings by examining cross-sections
using an optical microscope.
This document applies to the measurement of thickness of metallic and oxide coatings.

Basic Data

Standard ID	GB/T 6462-2025 (GB/T6462-2025)
Description (Translated English)	Metallic and oxide coatings - Measurement of coating thickness - Microscopical method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A29
Classification of International Standard	25.220.20, 25.220.40
Word Count Estimation	18,187
Date of Issue	2025-10-31
Date of Implementation	2026-05-01
Older Standard (superseded by this standard)	GB/T 6462-2005
Issuing agency(ies)	State Administration for Market Regulation and Standardization Administration of China