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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Rust prevention terminology
Standard published on 22.4.1989
Selected format:
Rust prevention terminology
Execute Date: may 2026
Standard published on 31.10.2025
Selected format:Thermal spraying—Pre-treatment of surfaces of metallic parts and components
Standard published on 29.9.2017
Selected format:Thermal spraying coating - Nondestructive methods for measurement of thickness
Standard published on 3.9.2012
Selected format:Metallic and other inorganic coatings--Thermal spraying--Safe practices
Standard published on 10.8.1999
Selected format:Metallic and other inorganic coatings—Phosphate conversion coating of metals
Standard published on 2.6.2020
Selected format:Metallic and other non-organic coating -- General rules for corrosion tests applicable for storage conditions
Standard published on 12.10.2005
Selected format:Metallic coatings-Measurement of coating thickness-Profilometric method
Standard published on 23.6.2005
Selected format:
Metallic coatings—Measurement of coating thickness—Profilometric method
Execute Date: may 2026
Standard published on 31.10.2025
Selected format:Metallic coatings - Electroplated coatings of chromium for engineering purposes
Standard published on 19.6.2008
Selected format:Latest update: 2025-12-28 (Number of items: 2 253 436)
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