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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
Specific test methods for d.c. machines on conventional and rectifier-fed supplies
WITHDRAWN published on 15.2.2006
Selected format:Basic specifications for fuel fired installations—Part 1:General
WITHDRAWN published on 15.2.2006
Selected format:Steel wire ropes for general purpose
WITHDRAWN published on 1.3.2006
Selected format:Flat steel wire ropes for balance
WITHDRAWN published on 1.3.2006
Selected format:Steel and alloy--Determination of trace element contents--Part 6:Determination of germanium content by gallic acid oscillopolarographic method
WITHDRAWN published on 2.3.2006
Selected format:Steel and alloy--Determination of trace element contents--Part 7:Determination of lead content by oscillopolarographic method
WITHDRAWN published on 2.3.2006
Selected format:Inert fire extinguishing agent
WITHDRAWN published on 1.3.2006
Selected format:Electron linac for non-destructive testing
WITHDRAWN published on 2.3.2006
Selected format:Method for determination density of benzene products
WITHDRAWN published on 15.8.1980
Selected format:Self-shielding electron beam sterilizing facility
WITHDRAWN published on 2.3.2006
Selected format:Latest update: 2025-12-26 (Number of items: 2 253 153)
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