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Standards GB - Chinese national standards - Page 5240
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 8297-2023
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Natural rubber latex concentrate—Determination of KOH number
Standard published on 7.9.2023
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GB/T 8298-2017
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Latex,rubber—Determination of total solids content
Standard published on 29.12.2017
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GB/T 8299-2008
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Natural rubber latex concentrate - Determination of dry rubber content
Standard published on 15.5.2008
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GB/T 83-2018
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Square set screws with long dog point and rounded end
Standard published on 28.12.2018
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GB/T 830-1988
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Slotted cheese head screws with shoulder
Standard published on 24.6.1988
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GB/T 8300-2025
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Natural rubber latex concentrate—Determination of alkalinity
Standard published on 25.4.2025
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GB/T 8301-2008
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Natural rubber latex concentrate - Determination of mechanical stability
Standard published on 15.5.2008
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GB/T 8302-2013
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Tea—Sampling
Standard published on 31.12.2013
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GB/T 8303-2013
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Tea—Preparation of ground sample and determination of dry matter content
Standard published on 31.12.2013
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GB/T 8305-2013
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Tea—Determination of water extracts content
Standard published on 31.12.2013
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