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Standards GB - Chinese national standards - Page 118
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 11417.1-2025
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Ophthalmic optics—Contact lenses—Part 1: Vocabulary, classification and recommendations for labelling specifications
Execute Date: august 2027
Standard published on 1.8.2025
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GB 11417.2-2012
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Ophthalmic optics - Contact lenses - Part 2: Rigid contact lenses specification
Standard published on 31.12.2012
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GB 11417.2-2025
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Ophthalmic optics—Contact lenses—Part 2: Rigid contact lenses
Execute Date: november 2028
Standard published on 31.10.2025
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GB 11417.3-2012
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Ophthalmic optics - Contact lenses - Part 3Soft contact lenses
Standard published on 31.12.2012
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GB 11417.3-2025
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Ophthalmic optics—Contact lenses—Part 3:Soft contact lenses
Execute Date: november 2028
Standard published on 31.10.2025
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GB/T 11417.4-2012
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Ophthalmic optics - Contact lenses - Part 4 Saline solution for contact lens testing
Standard published on 31.12.2012
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GB/T 11417.5-2012
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Ophthalmic optics - Contact lenses - Part 5: Testing methods for optical properties
Standard published on 31.12.2012
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GB/T 11417.6-2012
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Ophthalmic optics - Contact lenses - Part 6: Mechanical properties test methods
Standard published on 31.12.2012
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GB/T 11417.7-2012
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Ophthalmic optics - Contact lenses - Part 7: Physicochemical properties test methods
Standard published on 31.12.2012
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GB/T 11417.8-2023
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Ophthalmic optics—Contact lenses—Part 8Determination of shelf-life
Standard published on 7.9.2023
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