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Standards GB - Chinese national standards - Page 5343
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 7594.6-1987
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Rubber insulation and sheath of electric cables and wires--Part 6:Heavy duty rubber sheath 65 Centigrade
Standard published on 28.3.1987
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GB/T 7594.7-1987
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Rubber insulation and sheath of electric cables and wires--Part 7:Heavy duty flame-retardant rubber sheath 65 Centigrade
Standard published on 28.3.1987
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GB/T 7594.8-1987
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Rubber insulation and sheath of electric cables and wires--Part 8:Rubber sheath 90 Centigrade
Standard published on 28.3.1987
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GB/T 7594.9-1987
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Rubber insulation and sheath of electric cables and wires--Part 9:Ordinary duty flame-retardant rubber sheath 85 Centigrade
Standard published on 28.3.1987
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GB/T 7595-2017
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Quality of transformer oils in service
Standard published on 12.5.2017
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GB/T 7595-2017E
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Quality of transformer oils in service
Standard published on 12.5.2017
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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 7596-2017E
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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 7597-2026
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Method of sampling for oils used in electrical equipment
Execute Date: november 2026
Standard published on 2.7.2026
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