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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
High-alumina refractory bricks for blast furnaces
WITHDRAWN published on 1.1.1987
Selected format:Log for lumber in light wood frame construction
WITHDRAWN published on 12.11.2013
Selected format:Determination of the emission of volatile organic compounds from wood-based panels and furnishing—Small chamber method
WITHDRAWN published on 12.11.2013
Selected format:Rolling bearings--Metric double row tapered roller bearings--Boundary dimensions
WITHDRAWN published on 1.1.1985
Selected format:Rolling bearings—Metric double row tapered roller bearings—Boundary dimensions
WITHDRAWN published on 14.12.1995
Selected format:Rolling bearings—Double row tapered roller bearings—Boundary dimensions
WITHDRAWN published on 28.2.2008
Selected format:High-alumina refractory bricks for hot blast stoves
WITHDRAWN published on 1.1.1987
Selected format:High alumina refractory bricks for electric arc furnace roofs
WITHDRAWN published on 1.1.1987
Selected format:Specification for car rental service
WITHDRAWN published on 27.11.2013
Selected format:Technical requirements for lectotype of urban logistics distribution vehicles
WITHDRAWN published on 27.11.2013
Selected format:Latest update: 2026-03-15 (Number of items: 2 266 660)
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