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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
Raw rubber or unvulcanised compounds—Determination of green strength
Standard published on 25.4.2025
Selected format:Metallic materials—Residual stresses determination—Short-wavelength X-ray diffraction method
Standard published on 25.4.2025
Selected format:Fine ceramics—Test method of elastic modulus, shear modulus and Poisson""s ratio for ceramic at high temperature—Impulse excitation of vibration
Standard published on 25.4.2025
Selected format:Liquid silicone rubber—Self-lubricating type for connectors
Standard published on 25.4.2025
Selected format:Paper and board--Determination of smoothness (Bekk method)
Standard published on 22.7.2002
Selected format:Green product assessment—Copying devices and stencil duplicator
Standard published on 25.4.2025
Selected format:Green product assessment—Consumables and accessories for copy and print device
Standard published on 25.4.2025
Selected format:Ships and marine technology—Adjustable roller-type chain stoppers
Standard published on 25.4.2025
Selected format:Specification of categories of light sources for power-driven vehicles
Standard published on 25.4.2025
Selected format:Ships and marine technology—High holding power balance anchors
Standard published on 25.4.2025
Selected format:Latest update: 2026-11-12 (Number of items: 2 209 301)
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