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Standards GB - Chinese national standards - Page 7631
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 3092-1993
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Welded steel pipe for low pressure service
WITHDRAWN published on 17.2.1993
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GB/T 30921.5-2016
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Test method of purified terephthalic acid (PTA) for industrial use—Part 5: Determination of acid number
WITHDRAWN published on 14.6.2016
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GB/T 30921.6-2016
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Test method of purified terephthalic acid (PTA) for industrial use—Part 6: Determination of particle size distribution
WITHDRAWN published on 14.6.2016
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GB/T 30923-2014
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Plastics—Polypropylene materials for meltblown
WITHDRAWN published on 8.7.2014
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GB/T 30924.1-2016
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Plastics—Ethylene-vinyl acetate(EVAC) moulding and extrusion materials—Part 1: Designation system and basis for specification
WITHDRAWN published on 13.10.2016
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GB 3093-1986
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High-pressure seamless steel tubes for diesel engine
WITHDRAWN published on 1.1.1986
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GB/T 3093-2002
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High-pressure seamless steel tubes for diesel engine
WITHDRAWN published on 11.9.2002
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GB/T 3094-2000
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Cold drawn shaped steel tubes
WITHDRAWN published on 25.10.2000
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GB/T 30944-2014
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Guide for energy losses calculation of small hydropower grid
WITHDRAWN published on 8.7.2014
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GB/T 30948-2014
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Code of practice for technical management of pumping station
WITHDRAWN published on 8.7.2014
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