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Standards GB - Chinese national standards - Page 4989
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 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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GB/T 5019.6-2007
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Specification for insulating materials based on mica - Part 3: Specifications for individual materials - Sheet 4: Polyester film-backed mica paper with a B-stage epoxy resin binder
Standard published on 3.12.2007
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GB/T 5019.7-2009
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Insulating materials based on mica - Part 7: Glass-backed and film-backed mica paper with an epoxy resin binder for vacuum pressure impregnation(VPI)
Standard published on 10.6.2009
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GB/T 5019.8-2009
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Specification for insulating materials based on mica - Part 8: Glass-backed mica paper with a B-stage epoxy resin binder
Standard published on 10.6.2009
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GB/T 5019.9-2009
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Insulating materials based on mica - Part 9: Polyester film mica paper with an epoxy resin binder for single conductor taping
Standard published on 10.6.2009
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GB 50190-2020
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Standard for vibration control design of industrial buildings
Standard published on 9.6.2020
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GB 50191-2012
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Code for seismic design of special structures
Standard published on 28.5.2012
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GB/T 50193-1993
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Code of design for carbon dioxide fire extinguishing systems
Standard published on 1.1.1993
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