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Standards GB - Chinese national standards - Page 8555
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 7254-1987
WITHDRAWN
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Performance requirement of second order digital multiplex equipment operating at 8448 kbit/s and using positive justification
WITHDRAWN published on 1.1.1987
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GB 7255-1987
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Specification for single sideband power-line carrier terminals
WITHDRAWN published on 1.1.1987
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GB/T 7256-2005
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General requirements of lighting fixtures for civil airport
WITHDRAWN published on 18.1.2005
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GB/T 7256-2015
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General requirements of lighting fixtures for civil airport
WITHDRAWN published on 2.6.2015
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GB 7256.1-1987
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Specifications for airport light fixtures--General requirements
WITHDRAWN published on 10.2.1987
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GB 7256.2-1987
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Specifications for airport light fixtures high intensity elevated approach light
WITHDRAWN published on 1.1.1987
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GB/T 7257-1987
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Measurement methods of parameter for helium neon laser
WITHDRAWN published on 9.2.1987
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GB 7258-1997
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Safety specifications for motor vehicles operating on roads
WITHDRAWN published on 9.4.1997
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GB 7258-2004
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Safety specifications for power-driven vehicles operating on roads
WITHDRAWN published on 12.7.2004
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GB 7258-2012
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Safety specifications for power-driven vehicles operating on roads
WITHDRAWN published on 11.5.2012
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