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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
Photovoltaic devices—Part 3: Measurement principles for terrestrial photovoltaic(PV) solar devices with reference spectral irradiance data
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 5: Determination of the equivalent cell temperature (ECT) of photovoltaic devices by the open-circuit voltage method
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 7: Computation of the spectral mismatch correction for measurements of photovoltaic devices
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 8: Measurement of spectral responsivity of a photovoltaic(PV) device
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 8-1: Measurement of spectral responsivity of multi-junction photovoltaic (PV) devices
Standard published on 31.12.2025
Selected format:Photovoltaic devices—Part 9: Classification of solar simulator characteristics
Standard published on 31.12.2025
Selected format:Test method of aerospace solar cells calibration
Standard published on 1.11.2017
Selected format:Test method of aerospace solar cells calibration
Standard published on 1.11.2017
Selected format:The general rules of terrestrial photovoltaic cell calibration
Standard published on 31.12.2025
Selected format:Test method for micronaire value of cotton fibers
Standard published on 15.3.2024
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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