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Standards GB - Chinese national standards - Page 7227
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 25428-2010
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Petroleum and natural gas industries—Drilling and production equipment—Drilling and well-servicing structures
WITHDRAWN published on 10.11.2010
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GB/T 25429-2010
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Specification for drill string non-return valve
WITHDRAWN published on 10.11.2010
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GB/T 2543.1-2001
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Textiles—Determination of twist in yarn—Part 1:Direct counting method
WITHDRAWN published on 26.2.2001
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GB/T 25430-2010
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Specification for drill through equipment—Rotating control devices
WITHDRAWN published on 10.11.2010
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GB 25433-2010
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Safety requirements of rubber internal mixers & plastics internal mixers
WITHDRAWN published on 10.11.2010
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GB/T 25436-2010
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Heat sealable filter paper for teabags
WITHDRAWN published on 10.11.2010
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GB 2544-1988
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Knife blades
WITHDRAWN published on 1.1.1988
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GB/T 25440.1-2010
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Retrieval and analysis of surgical implants—Part 1:Retrieval and handling
WITHDRAWN published on 10.11.2010
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GB/T 25440.2-2010
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Retrieval and analysis of surgical implants—Part 2:Analysis of retrieved metallic surgical implants
WITHDRAWN published on 10.11.2010
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GB/T 25440.3-2010
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Retrieval and analysis of surgical implants—Part 3:Analysis of retrieved polymeric surgical implants
WITHDRAWN published on 10.11.2010
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