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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
Choice and installation of shipboard telecommunication cables and radio-frequency cables
WITHDRAWN published on 15.7.1991
Selected format:-
WITHDRAWN published on 1.1.1977
Selected format:Epoxide woven glass fabric laminated sheet
WITHDRAWN published on 21.12.1998
Selected format:Specification for industrial rigid laminated sheets based on thermosetting resins for electrical purposes—Part 3:Specifications for individual materials—Sheet 3:Requirements for rigid laminated sheets based on melamine resins
WITHDRAWN published on 21.5.2002
Selected format:Specification for electric propulsion plant in ship
WITHDRAWN published on 15.7.1991
Selected format:Marine a.c. electrical power systems with voltages in the range above 1kV upto and including 11kV
WITHDRAWN published on 15.7.1991
Selected format:General specification for marine diesel generator set
WITHDRAWN published on 15.7.1991
Selected format:Mineral insulated cables and their terminations with a rated voltage not exceeding 750V—Part 1:General
WITHDRAWN published on 15.7.1991
Selected format:Mineral insulated cables and their terminations with a rated voltage not exceeding 750V—Part 2:Mineral insulated cables with copper conductors and copper sheath
WITHDRAWN published on 15.7.1991
Selected format:Mineral insulated cables and their terminations with a rated voltage not exceeding 750V Part 3:Terminations for mineral insulated cables with copper conductors and copper sheath
WITHDRAWN published on 15.7.1991
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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