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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
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:Thermal insulating products for building applications—Limit value of decabromodiphenyl ether (decaBDE)
Standard published on 28.1.2026
Selected format:Plastics—Production quality control—Statistical method for using single measurements
Standard published on 28.1.2026
Selected format:Thermal insulating products for building applications—Determination of released acrylic acid content and free acrylic acid content
Standard published on 28.1.2026
Selected format:Surface chemical analysis—Depth profiling—Non-destructive depth profiling of nanoscale heavy metal oxide thin films on Si substrates with medium energy ion scattering
Standard published on 28.1.2026
Selected format:ParticleTest method for collection efficiency of aerosol sampling filter
Standard published on 28.1.2026
Selected format:Determination of cephalosporins in wastewater—Liquid chromatography-tandem mass spectrometry
Standard published on 28.1.2026
Selected format:Surface chemical analysis—X-ray photoelectron spectroscopy—Measurement of binding energy for conductive carbon-based materials
Standard published on 28.1.2026
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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