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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
Hydraulic fluid power—Hose assemblies—Test methods
WITHDRAWN published on 14.1.2008
Selected format:Strengthened cap head square neck bolts
WITHDRAWN published on 1.3.1993
Selected format:Pneumatic fluid power—Five-port directional control valves—Part 1:Mounting interface surfaces without electrical connector
WITHDRAWN published on 26.2.2001
Selected format:Pneumatic fluid power—Five-port directional control valves—Part 2:Mounting interface surfaces with optional electrical connector
WITHDRAWN published on 26.2.2001
Selected format:Pneumatic fluid power—Five-port directional control valves—Part 3:Code system for communication of valve functions
WITHDRAWN published on 26.2.2001
Selected format:Vocabulary for motion picture machinery
WITHDRAWN published on 10.6.1987
Selected format:Installation and safe operation of electrically energized entanglements and electric fences
WITHDRAWN published on 10.6.1987
Selected format:Electrical installation and safe operation of electric security fences
WITHDRAWN published on 19.9.2008
Selected format:Identification of conductors by colors or numerals
WITHDRAWN published on 1.9.1997
Selected format:Basic and safety principles for man-machine interface, marking and identification—Identification of conductors by colors or numerals
WITHDRAWN published on 13.12.2006
Selected format:Latest update: 2025-07-17 (Number of items: 2 208 096)
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