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Standards GB - Chinese national standards - Page 726
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 17179.2-2000
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Information technology--Protocol for providing the connectionless-mode network service--Part 2:Provision of the underlying service by a GB/T 15629(ISO/IEC 8802) subnetwork
Standard published on 3.1.2000
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GB/T 17179.3-2000
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Information technology--Protocol for providing the connectionless-mode networkservice--Part 3:Provision of the underlying service by an X.25 subnetwork
Standard published on 3.1.2000
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GB/T 17179.4-2000
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Information technology--Protocol for providing the connectionless-mode network service--Part 4:Provision of the underlying service by a subnetwork that provides the OSI data link service
Standard published on 3.1.2000
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GB/T 17180-1997
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Information processing systems--Telecommunications and information exchange between systems--End system to intermediatesystem routeing exchange protocol for use in conjunction with the protocol for providing the connectionless-mode network service
Standard published on 25.12.1997
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GB/T 17182-1997
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Peak programme level meters
Standard published on 25.12.1997
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GB/T 17183-1997
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High speed 25-position interface for data terminal equipment and data circuit-termination equipmentincluding alternative 26-position connector
Standard published on 25.12.1997
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GB/T 17185-2012
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Steel flanged fittings
Standard published on 31.12.2012
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GB/T 17186.1-2015
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Calculation methods for the pipe flange joints—Part 1 Calculation method satisfies both strength and rigidity requirements
Standard published on 10.12.2015
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GB/T 17186.2-2018
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Calculation methods for the pipe flange joints—Part 2Calculation method satisfies leakage rate
Standard published on 14.5.2018
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GB/T 17187-2009
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Agricultural irrigation equipment - Emitters and emitting pipe - Specification and test methods
Standard published on 30.11.2009
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