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Standards GB - Chinese national standards - Page 622
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 16293-2025
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Test method for airborne microbe in clean roomzoneof the pharmaceutical industy
Execute Date: november 2026
Standard published on 5.10.2025
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GB/T 16294-2010
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Test method for settling microbe in clean room(zone) of the pharmaceutical industry
Standard published on 2.9.2010
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GB/T 16294-2025
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Test method for settling microbe in clean roomzoneof the pharmaceutical industy
Execute Date: november 2026
Standard published on 5.10.2025
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GB/T 16296.1-2018
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Acoustics—Audiometric test methods—Part 1: Pure-tone air and bone conduction audiometry
Standard published on 15.3.2018
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GB/T 16296.2-2016
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Acoustics—Audiometric test methods—Part 2: Sound-field audiometry with pure-tone and narrow-band test signals
Standard published on 24.2.2016
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GB/T 16296.3-2017
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Acoustics—Audiometric test methods—Part 3: Speech audiometry
Standard published on 29.12.2017
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GB 16297-1996
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Integrated emission standard of air pollutants
Standard published on 12.4.1996
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GB/T 16299-2025
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Technical requirements and testing methods for aircraft containers
Standard published on 5.10.2025
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GB/Z 163.1-2025
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High-voltage direct current(HVDC)systems—Guidance to the specification and design evaluation of AC filters—Part 1:Overview
Standard published on 3.12.2025
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GB/Z 163.4-2025
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High-voltage direct current(HVDC) systems—Guidance to the specification and design evaluation of AC filters—Part 4:Equipment
Standard published on 3.12.2025
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