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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
Type LT highly elastic frictionclutch
WITHDRAWN published on 6.6.1985
Selected format:Leaf chains
WITHDRAWN published on 1.1.1985
Selected format:Leaf chains, clevises and sheaves
WITHDRAWN published on 19.2.1995
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 1:General guidelines
WITHDRAWN published on 14.6.1999
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 2:Large land-based steam turbine generator sets in excess of 50MW
WITHDRAWN published on 20.5.2002
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 2:Land-based steam turbines and generators in excess of 50 MW with normal operating speeds of 1 500 r/min,1 800 r/min,3 000 r/min and 3 600 r/min
WITHDRAWN published on 30.4.2007
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 3:Industrial machines with nominal power above 15kW and nominal speeds between 120r/min and 15000r/min when measured in situ
WITHDRAWN published on 26.2.2001
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 4:Gas turbine driven sets excluding aircraft derivatives
WITHDRAWN published on 26.2.2001
Selected format:Mechanical vibration—Evaluation of machine vibration by measurements on non-rotating parts—Part 6:Reciprocating machines with power ratings above 100kW
WITHDRAWN published on 20.5.2002
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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