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Standards GB - Chinese national standards - Page 8503
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 6996.13-1986
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Grayscale test chart B of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.14-1986
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Defection distortion test chart of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.2-1986
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Linear test chart A of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.3-1986
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Linear test chart B of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.4-1986
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High-frequency test chart of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.5-1986
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High resolution test chart of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.6-1986
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Checkerboard test chart of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.7-1986
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Amplitude response test chart of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.8-1986
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Registration test chart A of transparencies for television
WITHDRAWN published on 20.11.1986
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GB/T 6996.9-1986
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Registration test chart B of transparencies for television
WITHDRAWN published on 20.11.1986
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