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Standards GB - Chinese national standards - Page 198
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 12507.1-2000
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Connectors for optical fibres and cables--Part 1:Generic specification
Standard published on 3.1.2000
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GB/T 12508-1990
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Alphanumeric character sets for optical recognition--Part 2:Character set OCR-B--Shapes and dimensions of the printed image
Standard published on 15.11.1990
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GB/T 12509-1990
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16 24 Dot matrix font setand data set of Uighur character for information interchange
Standard published on 15.11.1990
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GB/T 1251.1-2008
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Ergonomics - Danger signals for public and work areas - Auditory danger
Standard published on 16.7.2008
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GB/T 1251.2-2006
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Ergonomics - Visual danger signals - General requirements,design and testing
Standard published on 9.10.2006
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GB/T 1251.3-2008
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Ergonomics - system of auditory and visual danger and information signals
Standard published on 16.7.2008
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GB/T 12510-2015
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Information technology—Universal keyboard layout of the alphanumeric zone for Uyghur
Standard published on 11.9.2015
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GB/T 12511-1990
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Fibre optic switches--Part 1:Generic specification
Standard published on 15.11.1990
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GB/T 12512-1990
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Fibre optic attenuators--Part 1:Generic specification
Standard published on 15.11.1990
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GB/T 12513-2006
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Fire-resistance tests - Elements of building construction - Glazed elements
Standard published on 14.3.2006
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