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Standards GB - Chinese national standards - Page 5143
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 7596-2017
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In-service quality criteria of mineral turbine oils used in power plants
Standard published on 12.5.2017
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GB/T 7597-2007
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Method of sampling for transformer and turbine oils in electric power industry
Standard published on 30.4.2007
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GB/T 7598-2008
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Determination of water-soluble acid in transformer oils in service
Standard published on 24.9.2008
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GB/T 7600-2014
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Determination of water content in transformer oils and turbine oils in service by coulometric method
Standard published on 3.9.2014
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GB/T 7601-2008
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Determination of water content for transformer and turbine oils in service by gas chromatographic method
Standard published on 24.9.2008
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GB/T 7602.1-2008
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Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 1: Spectrophotometric method
Standard published on 24.9.2008
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GB/T 7602.2-2008
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Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 2: Liquid chromatography
Standard published on 30.12.2008
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GB/T 7602.3-2008
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Determination of T501 oxidation inhibitor content in transformer oil or turbine oil - Part 3: Infrared spectroscopy method
Standard published on 30.12.2008
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GB/T 7602.4-2017
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Quantitative determination of T501 oxidation inhibitor content in transformer oil or turbine oil—Part 4: GC/MS method
Standard published on 1.11.2017
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GB/T 7603-2012
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Determination of the aromatic carbon content in mineral insulating oil
Standard published on 29.6.2012
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