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Standards GB - Chinese national standards - Page 7558
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 7422.2-1987
WITHDRAWN
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16×1216×816×4 Dot matrix data set of Mongolian characters for information interchange
WITHDRAWN published on 14.3.1987
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GB/T 7424.1-1998
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Optical fibre cables Part 1:Generic specification
WITHDRAWN published on 21.12.1998
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GB/T 7424.2-2002
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Optical fibre cable generic specification—Part 2:Basic optical cable test procedures
WITHDRAWN published on 9.8.2002
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GB/T 7428-1994
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Head gaps for two sound records on 16mm magnetic film—Positions and width dimensions
WITHDRAWN published on 28.12.1994
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GB/T 743-1989
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Pulps--Determination of ether solubles
WITHDRAWN published on 31.3.1989
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GB/T 7430-1996
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Photography—Photographic films—Specifications for safety film
WITHDRAWN published on 25.10.1996
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GB/T 7432-1987
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Immunity specification of coaxial cable carrier system to the interference from the radio broadcasting and telecommunication
WITHDRAWN published on 17.3.1987
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GB/T 7433-1987
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Immunity specification of symmetrical cable carrier system to the interference from the radio broadcasting and telecommunication
WITHDRAWN published on 17.3.1987
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GB/T 7434-1987
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Immunity specification of open wire carrier system to the interference from the radio broadcasting and telecommunication
WITHDRAWN published on 17.3.1987
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GB/T 7438-1987
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Numbering for telex and low speed data in national communi cation network
WITHDRAWN published on 16.3.1987
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