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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
Water-turbine pump
Standard published on 21.5.2021
Selected format:Drying quality of sawn timber
Standard published on 31.12.2012
Selected format:Aerospace reference photovoltaic cells
Standard published on 31.12.2025
Selected format:Measurement method for electrical characteristics of aerospace solar cells
Standard published on 1.11.2017
Selected format:Measurement method for electrical characteristics of aerospace solar cells
Standard published on 1.11.2017
Selected format:Photovoltaic devices—Part 1: Measurement of photovoltaic current-voltage characteristics
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 10: Methods of linear dependence and linearity measurements
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 1-1: Measurement of current-voltage characteristics of multi-junction photovoltaic (PV) devices
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 11: Test method of initial light-induced degradation of crystalline silicon solar cell
Standard published on 25.4.2016
Selected format:Photovoltaic devices—Part 2: Requirements for photovoltaic reference devices
Standard published on 31.12.2025
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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