We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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 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:In-service quality criteria of mineral turbine oils used in power plants
Standard published on 12.5.2017
Selected format:Method of sampling for transformer and turbine oils in electric power industry
Standard published on 30.4.2007
Selected format:Determination of water-soluble acid in transformer oils in service
Standard published on 24.9.2008
Selected format:Determination of water content in transformer oils and turbine oils in service by coulometric method
Standard published on 3.9.2014
Selected format:Determination of water content for transformer and turbine oils in service by gas chromatographic method
Standard published on 24.9.2008
Selected format:Latest update: 2026-05-14 (Number of items: 2 277 490)
© Copyright 2026 NORMSERVIS s.r.o.