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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
Semiconductor devices--Part 12-4:Optoelectronicdevices--Blank detail specification for pin-FET modules with/without pigtailfor fiber optic systems or sub-systems
Standard published on 4.12.2002
Selected format:Semiconductor devices--Part 12-5: Optoelectronic devices--Blank detail specification for pin-photodiodes with/without pigtailfor fibre optic systems or subsystems
Standard published on 24.1.2003
Selected format:Software engineering--Product evaluation--Part 6:Documentation of evaluation modules
Standard published on 4.12.2002
Selected format:Open electronic-book publication structure
Standard published on 4.12.2002
Selected format:Microbeam analysis - Analytical electron microscopy - Selected-area electron diffraction analysis using a transmission electron microscope
Standard published on 19.7.2013
Selected format:Specified time relays for industrial use--Part 1:Requirements and tests
Standard published on 4.12.2002
Selected format:Sectional specification for high-frequency inductors and intermediate frequency transformers for use in electronic equipment for capability approval
Standard published on 4.12.2002
Selected format:Liquid crystal display devices—Part 10-1: Environmental, endurance and mechanical test methods—Mechanical
Standard published on 11.10.2021
Selected format:Liquid crystal display devices—Part 10-2: Environmental, endurance and mechanical test methods—Environmental and endurance
Standard published on 11.10.2021
Selected format:Liquid crystal display devices—Part 10-3Environmental, endurance and mechanical test methods—Glass strength and reliability
Standard published on 25.4.2025
Selected format:Latest update: 2026-09-19 (Number of items: 2 302 332)
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