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Standards GB - Chinese national standards - Page 547
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 15596-2021
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Plastics—Determination of changes in colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources
Standard published on 20.8.2021
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GB/T 15597.1-2009
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Plastics - Poly(methyl methacrylate)(PMMA)moulding and extrusion materials - Part 1: Designation system and basis for specifications
Standard published on 15.6.2009
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GB/T 15597.1-2024
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Plastics—Poly(methyl methacrylate)(PMMA) moulding and extrusion materials—Part 1:Designation system and basis for specifications
Standard published on 29.6.2024
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GB/T 15597.2-2010
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Plastics - Poly(methyl methacrylate)(PMMA)moulding and extrusion materials - Part 2: Preparation of test specimens and determination of properties
Standard published on 26.9.2010
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GB/T 15597.2-2024
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Plastics—Poly(methyl methacrylate)(PMMA)moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
Standard published on 29.6.2024
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GB 15599-2009
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Safety rules of lightning with relation to petroleum and its facilities
Standard published on 31.3.2009
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GB 15599-2025
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Lightning safety specification for hazardous chemical enterprises
Execute Date: september 2026
Standard published on 31.12.2025
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GB/T 156-2017
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Standard Voltages
Standard published on 1.11.2017
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GB/Z 156-2025
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Good practice for dynamic light scattering(DLS) measurements
Standard published on 3.12.2025
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GB 15600-2008
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Safety and health codes for carbon and graphite production
Standard published on 23.12.2008
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