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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
Single-mode optical fibres for telecommunication—Part 3:Characteristics of an extended wavelength band dispersion unshifted single-mode optical fibre
WITHDRAWN published on 7.10.2008
Selected format:The series of single-mode optical fibres for telecommunication—Part 4:Characteristics of a dispersion shifted single-mode optical fibre
WITHDRAWN published on 17.10.2000
Selected format:Single-mode optical fibres for telecommunication—Part 4:Characteristics of a dispersion-shifted single-mode optical fibre
WITHDRAWN published on 7.10.2008
Selected format:The series of single-mode optical fibres for telecommunication—Part 5:Characteristics of a non-zero dispersion shifted single-mode optical fibre
WITHDRAWN published on 17.10.2000
Selected format:Single-mode optical fibres for telecommunication—Part 5:Characteristics of a non-zero dispersion shifted single-mode optical fibre
WITHDRAWN published on 7.10.2008
Selected format:Single-mode optical fibres for telecommunication—Part 6:Characteristics of a fibre with non-zero dispersion for wideband optical transport
WITHDRAWN published on 7.10.2008
Selected format:Single-mode optical fibres for telecommunication—Part 7:Characteristics of a bending loss insensitive single-mode optical fibre for the access network
WITHDRAWN published on 29.6.2012
Selected format:Asbestos-cement corrugated sheet and ridge tile
WITHDRAWN published on 26.9.1996
Selected format:Sacks for packing cement
WITHDRAWN published on 10.9.1996
Selected format:Sacks for packing cement
WITHDRAWN published on 9.4.2002
Selected format:Latest update: 2025-05-23 (Number of items: 2 201 776)
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