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Standards GB - Chinese national standards - Page 4520
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 45305.2-2025
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Acoustics—Laboratory measurement of sound insulation of building elements—Part 2: Measurement of airborne sound insulation
Standard published on 1.8.2025
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GB/T 45305.3-2026
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Acoustics—Laboratory measurement of sound insulation of building elements—Part 3:Measurement of impact sound insulation
Standard published on 28.1.2026
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GB/T 45305.4-2025
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Acoustics—Laboratory measurement of sound insulation of building elements—Part 4 : Measurement procedures and requirements
Standard published on 28.2.2025
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GB/T 45305.5-2026
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Acoustics—Laboratory measurement of sound insulation of building elements—Part 5: Requirements for test facilities and equipment
Standard published on 28.1.2026
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GB/T 45306-2025
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Railway applications—Power supply with onboard energy storage system for rolling stock—Series hybrid system
Standard published on 28.2.2025
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GB/T 45307-2025
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Opto-electronic measurement—Test methods for main parameters of LiDAR in intelligent operation
Standard published on 28.2.2025
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GB/T 45308-2025
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Railway applications—Rolling stock—Technical requirements for network time synchronization
Standard published on 28.2.2025
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GB/T 45309-2025
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Guidelines for classification and coding of enterprise procurement supplies
Standard published on 28.2.2025
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GB/T 45310-2025
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Specification for main control system of solar power tower plant
Standard published on 28.2.2025
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GB/T 45311-2025
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Tidal energy converter—Sea trial technical requirements
Standard published on 28.2.2025
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