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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
Rubber insulation and sheath of electric cables and wires--Part 10:Ordinary duty flame-retardant rubber sheath 90 Centigrade
Standard published on 28.3.1987
Selected format:Rubber insulation and sheath of electric cables and wires--Part 11:Rubber insulation or sheath 180 Centigrade
Standard published on 28.3.1987
Selected format:Rubber insulation and sheath of electric cables and wires--Part 3:Rubber insulation 70 Centigrade
Standard published on 28.3.1987
Selected format:Rubber insulation and sheath of electric cables and wires--Part 4:Ordinary duty rubber sheath 65 Centigrade
Standard published on 28.3.1987
Selected format:Rubber insulation and sheath of electric cables and wires--Part 5:Ordinary duty flame-retardant rubber sheath 65 Centigrade
Standard published on 28.3.1987
Selected format:Rubber insulation and sheath of electric cables and wires--Part 6:Heavy duty rubber sheath 65 Centigrade
Standard published on 28.3.1987
Selected format: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
Selected format:Rubber insulation and sheath of electric cables and wires--Part 8:Rubber sheath 90 Centigrade
Standard published on 28.3.1987
Selected format: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
Selected format:Quality of transformer oils in service
Standard published on 12.5.2017
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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