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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
Platinum and platinum alloy powder for addictive manufacturing
Standard published on 15.3.2024
Selected format:Surface chemical analysis—Scanning probe microscopy—Standards on the definition and calibration of spatial resolution of electrical scanning probe microscopes (ESPMs) such as SSRM and SCM for 2D-dopant imaging and other purposes
Standard published on 15.3.2024
Selected format:Patterned sapphire substrate
Standard published on 15.3.2024
Selected format:Surface chemical analysis—Secondary-ion mass spectrometry—Repeatability and constancy of the relative-intensity scale in static secondary-ion mass spectrometry
Standard published on 15.3.2024
Selected format:Determination of dispersing performance for water treatment chemicals—Part 1Dispersing kaolin method
Standard published on 15.3.2024
Selected format:Hot rolled bars of rare earth for reinforcement of concrete
Standard published on 15.3.2024
Selected format:Corrosion of metals and alloys—Guidelines for corrosion test by electrochemical noise measurements
Standard published on 15.3.2024
Selected format:Technical specification for corrosion monitoring and testing of steel reinforced concrete
Standard published on 15.3.2024
Selected format:General requirements for suspension control of unmanned cargo aircraft
Standard published on 15.3.2024
Selected format:Space data and information transfer systems—1553B data bus communication protocol on spacecraft
Standard published on 15.3.2024
Selected format:Latest update: 2026-09-11 (Number of items: 2 300 165)
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