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Standards GB - Chinese national standards - Page 8787
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 6669-2001
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Polymeric material,cellular flexible—Determination of compression set
WITHDRAWN published on 24.10.2001
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GB/T 667-1978
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WITHDRAWN published on 1.1.1978
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GB/T 667-1995
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Chemical reagent—Zinc nitrate hexahydrate
WITHDRAWN published on 20.12.1995
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GB 6670-1986
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WITHDRAWN published on 1.1.1986
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GB/T 6670-1997
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Cellular plastics—Flexible polyurethane foam-Determination of resilience
WITHDRAWN published on 28.5.1997
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GB/T 6671.1-1986
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Unplasticized polyvinyl chloride (PVC) pipes--Determination of longitudinal reversion
WITHDRAWN published on 1.1.1986
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GB/T 6671.2-1986
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Polyethylene (PE) pipes--Determination of longitudinal reversion
WITHDRAWN published on 1.1.1986
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GB/T 6671.3-1986
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Polypropylene (PE) pipes--Determination of longitudinal reversion
WITHDRAWN published on 1.1.1986
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GB/T 6672-1986
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Determination of thickness of plastic film and sheeting by mechanical scanning
WITHDRAWN published on 1.1.1986
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GB/T 6673-1986
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Plastics--Film and sheeting--Determination of length and width
WITHDRAWN published on 1.1.1986
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