GB/T 9966.5-2020

Active

Test methods for natural stone—Part 5:Determination of hardness

天然石材试验方法 第5部分:硬度试验

Standard Type
GBT
ICS
91.100.15
CCS
Q21
Status
Active
Issue Date
2020-03-06
Implementation
2021-02-01
Centralized Committee
中国建筑材料联合会
Issuing Authority
中国建筑材料联合会

Application Summary AI generated

This standard specifies the method for determining the hardness of natural stone, primarily using the Mohs scratch test. It is applied in the construction and building materials industry to evaluate the surface durability and wear resistance of stone products, such as granite, marble, and limestone, for use in flooring, cladding, and countertops. The test is essential for quality control and material selection in stone processing and architectural applications.

Related Standards

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.