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Standards GB - Chinese national standards - Page 4545

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 4546-2026

Glass containers—Test methods of internal pressure resistance
Execute Date: february 2027

Standard published on 2.7.2026

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GB/T 45460-2025

Steel wire ropes—Determination of the transverse rigidity of steel wire ropes under no axial load condition

Standard published on 28.3.2025

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GB/T 45461-2025

Carbon fiber composite materials—Code of practice for test specimen tabbing

Standard published on 28.3.2025

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GB/T 45462-2025

Test methods for the performance of gas-phase air cleaning media and devices

Standard published on 28.3.2025

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GB/Z 45463-2025

Method for porosity measurement of thermally sprayed coatings

Standard published on 28.3.2025

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GB/T 45464-2025

Test method for modifier content of SBS modified asphalt for road engineering

Standard published on 28.3.2025

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GB/T 45465.1-2025

Testing and calculating methods for seasonal performance factor of energy recovery ventilators for outdoor air handling—Part 1:Seasonal performance factor of sensible heating recovery

Standard published on 28.3.2025

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GB/T 45466-2025

Gas-fired clothes dryer

Standard published on 28.3.2025

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