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Standards GB - Chinese national standards - Page 5193
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 811-2022
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Helmets for motorcycle and electric bicycle users
Standard published on 1.12.2022
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GB/T 8110-2020
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Wire electrodes and weld deposits for gas shielded metal arc welding of non alloy and fine grain steels
Standard published on 19.11.2020
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GB/T 8117.1-2008
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Rules for steam turbine thermal acceptance tests - Part 1: Method A - High accuracy for large condensing steam turbines
Standard published on 2.7.2008
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GB/T 8117.2-2008
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Rules for steam turbine thermal acceptance tests - Part 2: Method B - Wide range of accuracy for various types and sizes of turbines
Standard published on 2.7.2008
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GB/T 8117.2-2026
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Rules for steam turbine thermal acceptance tests—Part 2: Wide range of accuracy for various types and sizes of turbines
Execute Date: october 2026
Standard published on 31.3.2026
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GB/T 8117.3-2014
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Rules for steam turbine thermal acceptance testPart 3: Method CThermal performance verification tests of retrofitted steam turbines
Standard published on 22.12.2014
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GB/T 8117.4-2017
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Rules for steam turbine thermal acceptance test—Part 4: Method D—Simplified performance test rules for steam turbine and its thermal cycle
Standard published on 1.11.2017
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GB/T 8118-2010
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The general specification for arc welding machines
Standard published on 10.11.2010
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GB/T 812-1988
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Round nuts
Standard published on 24.6.1988
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GB/T 8120-1987
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High-purity n-heptane and isooctance--Determination of purity--Capillary gas chromatography
Standard published on 29.7.1987
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