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Standards GB - Chinese national standards - Page 541
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
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GB/T 15651.4-2026
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Semiconductor devices—Part 5-4: Optoelectronic devices—Semiconductor lasers
Execute Date: november 2026
Standard published on 30.4.2026
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GB/T 15651.5-2024
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Semiconductor devices—Part 5-5: Optoelectronic devices—Photocouplers
Standard published on 15.3.2024
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GB/T 15651.6-2023
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Semiconductor devices—Part 5-6: Optoelectronic devices—Light emitting diodes
Standard published on 7.9.2023
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GB/T 15651.7-2024
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Semiconductor devices—Part 5-7: Optoelectronic devices—Photodiodes and phototransistors
Standard published on 15.3.2024
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GB/T 15652-1995
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Generic specification for gas sensors of metal-oxide semiconductor
Standard published on 24.7.1995
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GB/T 15653-1995
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Measuring methods for gas sensors of metal-oxide semiconductor
Standard published on 24.7.1995
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GB/T 15654-1995
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Fixed film resistor networks for use in electronic equipment--Part 1:Generic specification
Standard published on 24.7.1995
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GB/T 15657-2021
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Classification and codes of diseases and patterns of traditional Chinese medicine
Standard published on 11.10.2021
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GB/T 15658-2012
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Method for measurements of radio noise
Standard published on 31.12.2012
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GB/T 1566-2003
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Square and rectangular thin keyways
Standard published on 5.6.2003
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