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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
Digital television terminology
WITHDRAWN published on 11.11.1999
Selected format:Broadcasting and television terminology Television broadcasting Test equipment and test techniques
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Radio broadcasting
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Wired broadcasting
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Satellite broadcasting
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Sound broadcasting General terms
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Television broadcasting General terms
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology—Television broadcasting—Visual and picture quality
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology—Television broadcasting—Signal and their attributes
WITHDRAWN published on 12.3.1987
Selected format:Broadcasting and television terminology Television broadcasting Techniques
WITHDRAWN published on 12.3.1987
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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