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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
Bevel and hypoid gear geometry
Standard published on 7.9.2023
Selected format:Design recommendations for bevel gears
Standard published on 7.9.2023
Selected format:Additive manufacturing—Requirements for lightweight structure design
Standard published on 7.9.2023
Selected format:Design and metrological characteristics of height gauges
Standard published on 7.9.2023
Selected format:Optical transfer function - Part 1: Terminology and symbol
Standard published on 30.9.2009
Selected format:Optical transfer function - Part 2: Directives of measurement
Standard published on 15.11.2009
Selected format:Design and metrological characteristics of electronic digital-indicator gauges
Standard published on 7.9.2023
Selected format:High-strength bolt assemblies for steel structures of weathering steel
Standard published on 7.9.2023
Selected format:Mobile terminal animation and comics content requirements
Standard published on 7.9.2023
Selected format:Basic specification for at-home care services of the elderly
Standard published on 7.9.2023
Selected format:Latest update: 2026-09-17 (Number of items: 2 301 467)
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