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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 mule skins
Standard published on 29.2.1988
Selected format:Raw donkey skins
Standard published on 29.2.1988
Selected format:Lock rings at the end of shaft with screw
Standard published on 2.7.1986
Selected format:Shale gas—Environmental protection—Part 2Recommended practice for environmental protection of production operations
Standard published on 23.5.2023
Selected format:Steel wire ropes for important purposes
Standard published on 1.3.2006
Selected format:Lock rings at the end of shaft with bolt
Standard published on 2.7.1986
Selected format:Limit standards for 226Ra in phosphate fertilizer and its compound fertilizer
Standard published on 30.12.2011
Selected format:Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings
Standard published on 30.12.2011
Selected format:Preparation of steel substrates before application of paints and related products-Visual assessment of surface cleanliness - Part 2: Preparation grades of praviously coated steel substrates after localized removal of previous coatings
Standard published on 1.4.2008
Selected format:Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 3: Preparation grades of welds,edges and other areas with surface imperfections
Standard published on 9.3.2009
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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