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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
Ferrosilicon—Determination of chromium content—Diphenylcarbazide spectrophotometric method
Standard published on 4.6.2019
Selected format:Ferrosilicon—Determination of sulfur content—Infrared absorption method and chromatographic separation-barium sulfate gravimetric method
Standard published on 4.6.2019
Selected format:Ferrosilicon—Determination of calcium content—Flame atomic absorption spectrometry
Standard published on 9.3.2022
Selected format:Ballast water treatment system—Part 1Requirements
Standard published on 27.11.2023
Selected format:Ballast water treatment system—Part 2:Electrolytic method
Standard published on 15.3.2024
Selected format:Ballast water treatment system—Part 4Discharge sampling facilities and procedure
Standard published on 28.12.2023
Selected format:Internet data center(IDC) technical and classification requirements
Standard published on 27.11.2023
Selected format:Safety requirements of conductive charging and discharging for electric vehicles
Standard published on 27.11.2023
Selected format:Specification for commissioning and acceptance of stand-alone microgrid
Standard published on 28.12.2023
Selected format:Technical requirements for energy management system of isolated microgrids
Standard published on 27.11.2023
Selected format:Latest update: 2026-09-11 (Number of items: 2 300 165)
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