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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
Noise limits inside driver""s cabs and passenger compartments of subway powered car train-sets
WITHDRAWN published on 5.1.1994
Selected format:Measurement of noise inside driver""s cabs and passenger compartments of subway powered car train-sets
WITHDRAWN published on 5.1.1994
Selected format:Rules for inspecting and testing of metro vehicles after completion of construction
WITHDRAWN published on 3.2.1994
Selected format:Terms in metal cutting tools—Gear cutters
WITHDRAWN published on 5.1.1994
Selected format:Non-traditional machine tools—Terminology—Basic terminology
WITHDRAWN published on 5.1.1994
Selected format:Non-traditional machines—Terminology—Part 1:Basic terminology
WITHDRAWN published on 2.4.2009
Selected format:Non-traditional machine tools—Terminology—Electro-discharge machine tools
WITHDRAWN published on 5.1.1994
Selected format:Non-traditional machine tools—Terminology—Electrolytic machine tools
WITHDRAWN published on 5.1.1994
Selected format:Non-traditional machine tools—Terminology—Ultrasonic machine tools
WITHDRAWN published on 5.1.1994
Selected format:Non-traditional machine tools—Terminology—Combined machining machine tools
WITHDRAWN published on 5.1.1994
Selected format:Latest update: 2026-05-13 (Number of items: 2 276 848)
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