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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
Life testing method for heat pipe
WITHDRAWN published on 30.12.1993
Selected format:Three-phase asynchronous submersible electric motors for oil well—General specification
WITHDRAWN published on 30.12.1993
Selected format:General specification for permanent magnet DC servomotors
WITHDRAWN published on 30.12.1993
Selected format:General specification for permanent magnet DC servomotors
WITHDRAWN published on 13.6.2008
Selected format:General specification for DC servomotors with wounded disc armature
WITHDRAWN published on 30.12.1993
Selected format:General specification for DC servomotors with wounded disc armature
WITHDRAWN published on 13.6.2008
Selected format:General specification for wound field DC servomotors
WITHDRAWN published on 30.12.1993
Selected format:General specification for wound field DC servomotors
WITHDRAWN published on 13.6.2008
Selected format:Metallic powders—Determination of flowability by means of a calibrated funnel (Hall flowmeter)
WITHDRAWN published on 17.1.1984
Selected format:Metallic powders—Determination of flow time by means of a calibrated funnel (Hall flowmeter)
WITHDRAWN published on 23.12.2010
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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