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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
Special envelope—International envelope on postal service
Standard published on 28.1.2026
Selected format:Guidelines of application for enterprise public credit information
Standard published on 28.1.2026
Selected format:Animal and vegetable fats and oils—Determination of hydroxytyrosol and tyrosol content in extra virgin olive oils—Reverse phase high performance liquid chromatography method
Standard published on 28.1.2026
Selected format:Diagnostic techniques for equine influenza
Standard published on 28.1.2026
Selected format:Greenhouse gases—Quantification requirement and method for carbon footprint of products—Iron and steel products
Standard published on 28.1.2026
Selected format:Surface chemical analysis—Surface characterization—Measurement of the lateral resolution of a confocal fluorescence microscope
Standard published on 28.1.2026
Selected format:Plastics—Determination of the total luminous transmittance and reflectance
Standard published on 28.1.2026
Selected format:Plastics moulded parts—Tolerances and acceptance conditions
Standard published on 28.1.2026
Selected format:Technical requirements for equipments of construction and demolition waste sorting system
Standard published on 28.1.2026
Selected format:Determination of particle density—Sedimentation methods—Part 1:Isopycnic interpolation approach
Standard published on 28.1.2026
Selected format:Latest update: 2026-11-09 (Number of items: 2 209 259)
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