GB/T 6739-2022: Paints and varnishes - Determination of film hardness by pencil test

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Scope

This Document specifies a method for determining the hardness of paint films by pushing a
pencil of known hardness across the film.

Basic Data

Standard ID	GB/T 6739-2022 (GB/T6739-2022)
Description (Translated English)	Paints and varnishes - Determination of film hardness by pencil test
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	G50
Classification of International Standard	87.040
Word Count Estimation	10,190
Date of Issue	2022-12-30
Date of Implementation	2023-07-01
Older Standard (superseded by this standard)	GB/T 6739-2006
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration