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Standards GB - Chinese national standards - Page 8468

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

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GB/T 6278-1986 WITHDRAWN

Simulated programme signal

WITHDRAWN published on 15.4.1986

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GB 6279-1986 WITHDRAWN

WITHDRAWN published on 1.1.1986

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GB/T 628-1993 WITHDRAWN

Chemical reagent—Boric acid

WITHDRAWN published on 1.3.1993

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GB 6280-1986 WITHDRAWN

Capacity series and frequency channels arrangement in 25 to 1000MHz land mobile telecommunication network

WITHDRAWN published on 14.4.1986

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GB/T 6282-1986 WITHDRAWN

Interface parameters of the 25 to 1000MHz land mobile telecommunication network connecting to public telecommunication network through subscriber lines

WITHDRAWN published on 14.4.1986

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