GB/T 6739-2006
AbolishedPaints and varnishes - Determination of film hardness by pencil test
色漆和清漆 铅笔法测定漆膜硬度
Application Summary AI generated
This standard specifies a method for determining the hardness of paint and varnish films by using pencils of known hardness grades. It is applied in the coatings industry for quality control and product development, particularly to assess the scratch resistance and surface hardness of cured coatings on substrates like metal, wood, or plastic. The test is commonly used in manufacturing environments and laboratory testing to ensure coating durability for consumer goods, automotive parts, and industrial equipment.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.