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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
Low Pressure Oil Pipe Connections for Diesel Engine-Steel Nipple Connections
WITHDRAWN published on 1.1.1983
Selected format:Low pressure oil pipe connections for diesel engine--Hinged banjo connections
WITHDRAWN published on 1.1.1983
Selected format:Identification system for internet of things—Ecode encoding specifications for barcode
WITHDRAWN published on 29.12.2017
Selected format:Low pressure rubber hose with connections for diesel engine
WITHDRAWN published on 1.1.1983
Selected format:Identification system for internet of things—Ecode encoding specifications for two-dimensional barcode
WITHDRAWN published on 29.12.2017
Selected format:Requirements of environmental control for hospital negative pressure isolation ward
WITHDRAWN published on 29.12.2017
Selected format:Rules for agricultural seed testing
WITHDRAWN published on 1.1.1983
Selected format:Rules for agricultural seed testing--General directives
WITHDRAWN published on 18.8.1995
Selected format:Rules for agricultural seed testing--Sampling
WITHDRAWN published on 1.3.1983
Selected format:Rules for agricultural seed testing--Purity analysis
WITHDRAWN published on 1.3.1983
Selected format:Latest update: 2025-12-21 (Number of items: 2 252 887)
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