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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
PVC insulated wire for ignition of electric detonators
Standard published on 18.6.2008
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 1: Generic specification
Standard published on 29.12.2017
Selected format:Multicore and symmetrical pair/quad cables for digital communications - Part 11: Capability Approval - Generic specification
Standard published on 23.1.2007
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 2: Symmetrical pair/quad cables with transmission characteristics up to 100MHz—Horizontal floor wiring—Sectional specification
Standard published on 5.10.2025
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 21: Horizontal floor wiring—Blank detail specification
Standard published on 5.10.2025
Selected format:Multicore and symmetrical pair/quad cables for digital communications - Part 22: Horizontal floor wiring - Capability Approval - Sectional specification
Standard published on 23.1.2007
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 3Work area cable—Sectional specification
Standard published on 5.10.2025
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 31 Work area wiring—Blank detail specification
Standard published on 5.10.2025
Selected format:Multicore and symmetrical pair/quad cables for digital communications - Part 32: Work area wiring - Capability Approval - Sectional specification
Standard published on 23.1.2007
Selected format:Multicore and symmetrical pair/quad cables for digital communications—Part 4Riser cables—Sectional specification
Standard published on 5.10.2025
Selected format:Latest update: 2026-09-09 (Number of items: 2 300 143)
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