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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
Polymide woven glass fabric copper clad laminated sheets for printed circuits
Standard published on 31.7.2017
Selected format:Specification for conduit fittings for electrical installations--Part 1:General requirements
Standard published on 20.5.1996
Selected format:Basic test method for rotating traction electrical machines
Standard published on 31.12.2021
Selected format:Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometers—Part 1:General principles
Standard published on 31.12.2024
Selected format:Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometers—Part 2: Poly(vinyl chloride) resins
Standard published on 5.10.2025
Selected format:Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometer - part3: Polyethylenes and polypropylenes
Standard published on 26.9.2010
Selected format:Plastics—Determination of the viscosity of polymers in dilute solution using capillary viscometers—Part 4:Polycarbonate(PC) moulding and extrusion materials
Standard published on 14.12.2020
Selected format:Plastics - Determination of the viscosity of polymers in dilute solution using capillary viscometers - Part 5 : Thermoplastic polyester(TP) homopolymers and copolymers
Standard published on 14.8.2008
Selected format:Hygienic standard for dried fruits
Standard published on 25.1.2005
Selected format:Plastics—Thermoplastic materials—Determination of Vicat softerning temperature(VST)
Standard published on 2.12.2025
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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