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Standards GB - Chinese national standards - Page 5243
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 8322-2008
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Molecular absorption spectrometry - Terminology
Standard published on 18.6.2008
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GB/T 8323.2-2008
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Plastic - Smoke generation - Part 2: Determination of optical density by a single-chamber test
Standard published on 30.12.2008
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GB/T 8324-2008
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Plastics - Determination of bulk factor of moulding materials
Standard published on 4.8.2008
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GB/T 8325-1987
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Determination of pH of aqueous dispersions of polymers and copolymers
Standard published on 1.12.1987
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GB/T 8325-2026
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Plastics—Polymer dispersions and rubber latices—Determination of pH
Execute Date: october 2026
Standard published on 31.3.2026
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GB/T 833-1988
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Slotted large cheese head screws
Standard published on 24.6.1988
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GB/T 8330-2008
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Determination of specific gravity of ion exchange resins in wet state
Standard published on 30.6.2008
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GB/T 8331-2008
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Determination of bulk density of ion exchange resins in wet state
Standard published on 30.6.2008
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GB/T 8332-2008
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Test method for flammability of cellular plastic - Horizonal burning method
Standard published on 4.8.2008
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GB/T 8333-2022
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Plastic—Test method for flammability of rigid cellular plastic—Virtical burning method
Standard published on 30.12.2022
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