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Standards GB - Chinese national standards - Page 197
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 12557-2024
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Woodworking machines—Safety technical specification
Standard published on 29.9.2024
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GB/T 12559-1990
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The patternes series for artwork master of printed circuits
Standard published on 8.12.1990
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GB 1256-2008
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Working chemical - Arsenic trioxide
Standard published on 18.6.2008
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GB/T 12560-1999
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Semiconductor devices--Sectional specification for discrete devices
Standard published on 2.8.1999
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GB/T 12564-2008
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Generic specification for photomultiplier tubes
Standard published on 2.7.2008
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GB/T 12565-1990
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Semiconductor devices--Sectional specification for optoelectronic devices
Standard published on 12.12.1990
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GB/T 12566-1990
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Interface for signal chain of sound and television broadcasting transmitting equipments
Standard published on 7.12.1990
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GB 1257-2007
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Working chemical - Potassium hydrogen phthalate
Standard published on 25.10.2007
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GB/T 12571-1990
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Methods of measurement of monochrome display tubes
Standard published on 12.12.1990
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GB/T 12572-2008
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Universal requirements and measurement methods of parameters for radio transmitting equipment
Standard published on 30.6.2008
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