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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
Alternating-current metal-enclosed switchgear and controlgear for rated voltages above 3.6 kV and up to and including 40.5 kV
WITHDRAWN published on 25.8.2006
Selected format:General methods of measurement for industrial radio interference
WITHDRAWN published on 31.10.1983
Selected format:Test methods for detecting detrimental phases in lean duplex austenitic-ferritic stainless steels
WITHDRAWN published on 29.9.2020
Selected format:Dimensions of 80 columns punched paper cards for information processing
WITHDRAWN published on 29.10.1983
Selected format:Matrix font of graphic characters for information interchange
WITHDRAWN published on 2.11.1983
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WITHDRAWN published on 1.1.1983
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WITHDRAWN published on 1.1.1983
Selected format:Chemical reagents—The general rules of anodic stripping voltammetry
WITHDRAWN published on 7.11.1983
Selected format:Styrene for industrial use
WITHDRAWN published on 13.7.1998
Selected format:Styrene for industrial use
WITHDRAWN published on 12.5.2011
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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