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Standards GB - Chinese national standards - Page 948
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 18476-2019
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Polyolefin pipes for the conveyance of fluids—Determination of resistance to crack propagation—Test method for slow crack growth(notch test)
Standard published on 30.8.2019
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GB/T 18477.1-2007
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Unplasticized polyvinyl chloride (PVC-U) structure wall pipline system for underground soil waste and drainage - Part 1: double wall corrugated pipes
Standard published on 5.12.2007
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GB/T 18477.2-2011
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Unplasticized polyvinyl chloride (PVC-U) structure wall pipeline system for underground soil waste and draindge - Part 2: Ultra-Rib pipes
Standard published on 30.12.2011
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GB/T 18477.3-2019
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Unplasticized polyvinyl chloride (PVC-U) structure wall pipeline system for underground soil waste and drainage—Part 3: Axial hollow-wall construction pipes
Standard published on 30.8.2019
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GB/T 18478-2001
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Fiber optic circulators
Standard published on 28.9.2001
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GB/T 18480-2001
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Specification for submarine optical fiber cables
Standard published on 28.9.2001
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GB/T 18481-2001
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Power quality--Temporary and transient overvoltages
Standard published on 2.11.2001
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GB/T 18482-2026
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Code for startup and commissioning of reversible pumped storage units
Standard published on 30.4.2026
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GB 18483-2001
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Emission standard of cooking fume
Standard published on 12.11.2001
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GB 18484-2020
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Standard for pollution control on hazardous waste incineration
Standard published on 24.12.2020
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