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Standards GB - Chinese national standards - Page 4947
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 50189-2015
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Design standard for energy efficiency of public buildings
Standard published on 2.2.2015
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GB/T 5019.1-2009
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Specification for insulating materials based on mica - Part 1: Definitions and general requirements
Standard published on 10.6.2009
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GB/T 5019.10-2022
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Specification for insulating materials based on mica—Part 10Mica paper tapes for flame-resistant security cables
Standard published on 11.7.2022
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GB/T 5019.11-2009
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Specification for insulating materials based on mica - Part 11: Moulding micanite
Standard published on 10.6.2009
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GB/T 5019.12-2017
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Specification for insulating materials based on mica— Part 12Glass fabric backup epoxy dry mica tape with high porosity
Standard published on 29.9.2017
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GB/T 5019.13-2023
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Insulating materials based on mica—Part 13High thermal conductivity glass-backed mica tape with less resin
Standard published on 28.12.2023
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GB/T 5019.2-2009
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Specification for insulating materials based on mica - Part 2: Methods of test
Standard published on 10.6.2009
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GB/T 5019.3-2009
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Specification for insulating materials based on mica - Part 3: Commutator separators and materials
Standard published on 10.6.2009
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GB/T 5019.4-2025
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Insulating materials based on mica—Part 4Mica paper
Standard published on 1.8.2025
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GB/T 5019.5-2023
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Insulating materials based on mica—Part 5Rigid mica materials for heating equipment
Standard published on 28.12.2023
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