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Standards GB - Chinese national standards - Page 240
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 1294-2008
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Chemical reagent - L(+)-Tartaric acid
Standard published on 15.5.2008
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GB/T 12940-2023
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Technical specification for silver-graphite electrical contacts
Standard published on 27.11.2023
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GB/T 12944-2011
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High-voltage ceramic wall bushings
Standard published on 29.7.2011
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GB/T 12945-2003
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Jute fiber
Standard published on 21.4.2003
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GB/T 12946-2003
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Kenaf fiber
Standard published on 21.4.2003
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GB/T 12947-2008
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Fresh citrus
Standard published on 7.8.2008
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GB 12950-1991
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Safety regulations for seismic exploration blasting practices
Standard published on 5.6.1991
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GB 12950-2025
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Specification for blasting safety in seismic exploration
Execute Date: november 2026
Standard published on 31.10.2025
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GB/T 12951-2009
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Americium-241 alpha sources for ionization smoke fire detectors
Standard published on 13.3.2009
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GB 12952-2011
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Polyvinyl chloride plastic sheets for waterproofing
Standard published on 30.12.2011
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