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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
Emission standards and measurement methods of railway noise on the boundary alongside railway line
Standard published on 9.11.1990
Selected format:Specifications for long range electro-optical distance measurement
Standard published on 6.12.1990
Selected format:Aerial insulated cables for rated voltages up to and including 1kV
Standard published on 30.6.2008
Selected format:Rail vehicle cables with rated voltages up to and including 3kV
Standard published on 30.6.2008
Selected format:Graphic symbols and codes for grain and oil industry - Part 1: General items
Standard published on 4.11.2008
Selected format:Graphic symbols and codes for grain and oils industry - Part 2: Rice milling
Standard published on 4.11.2008
Selected format:Graphic symbols and codes for grain and oil industry - Part 3: Flour milling
Standard published on 4.11.2008
Selected format:Graphic symbols and codes for grain and oils industry - Part 4: Oils and fats industry
Standard published on 4.11.2008
Selected format:Graphic symbols and codes for grain and oil industry - Part 5: Storing and handling
Standard published on 26.9.2010
Selected format:Working chemical - Sodium chloride
Standard published on 25.10.2007
Selected format:Latest update: 2026-01-11 (Number of items: 2 254 176)
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