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Standards GB - Chinese national standards - Page 4661
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 46385.3-2026
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Optical circuit boards—Part 3: Performance—General and guidance
Execute Date: february 2027
Standard published on 30.7.2026
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GB/T 46385.4-2026
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Optical circuit boards—Part 4: Interface—General and guidance
Execute Date: february 2027
Standard published on 30.7.2026
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GB/T 46386.1-2025
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Plastics—Poly(butylene adipate terephthalate) (PBAT) moulding and extrusion materials—Part 1: Designation system and basis for classification
Standard published on 5.10.2025
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GB/T 46386.2-2025
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Plastics—Poly(butylene adipate terephthalate) (PBAT) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
Standard published on 5.10.2025
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GB/T 46387-2025
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Determination of the activity of chondroitinase
Standard published on 5.10.2025
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GB/T 46388.1-2025
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Sharps injury protection—Requirements and test methods—Part 1: Single-use sharps containers
Standard published on 5.10.2025
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GB/T 46388.2-2025
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Sharps injury protection—Requirements and test methods—Part 2: Reusable sharps containers
Standard published on 5.10.2025
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GB/T 46389-2025
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Determination of the activity of heparin lyase
Standard published on 5.10.2025
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GB/T 4639-2000
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Cinematography--Monophonic 35mm negative photographic sound record on 35 mm motion-picture film--Position and maximum width dimensions
Standard published on 17.10.2000
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GB/T 46390-2025
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Requirements for examination and evaluation of urban luminous environment
Standard published on 5.10.2025
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