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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
Assessment guidelines for energy saving technology
WITHDRAWN published on 30.4.2021
Selected format:Blast furnace ferromanganese
WITHDRAWN published on 1.1.1983
Selected format:Ferromaganese-silicon
WITHDRAWN published on 1.1.1987
Selected format:Ferromanganese-silicon
WITHDRAWN published on 27.9.1996
Selected format:Chromium silicon
WITHDRAWN published on 11.11.1989
Selected format:Ferroalloys--Sampling for chemical analysis
WITHDRAWN published on 1.1.1983
Selected format:Ferroalloys—Sampling and preparation of samples for chemical analysis
WITHDRAWN published on 13.6.1994
Selected format:1.2/4.4mm composite coaxial cable for telecommunication use
WITHDRAWN published on 15.12.1983
Selected format:2.6/9.5mm composite coaxial cable for telecommunication use
WITHDRAWN published on 15.12.1983
Selected format:Terminology for audio and video recording
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2025-11-23 (Number of items: 2 247 080)
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