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Standards GB - Chinese national standards - Page 6938
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 2063-1980
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WITHDRAWN published on 1.1.1980
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GB/T 20635-2006
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Special environment condition—Technical requirements of high-voltage apparatuses for plateau
WITHDRAWN published on 8.11.2006
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GB/T 20638-2006
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General specification for stepping motors
WITHDRAWN published on 8.11.2006
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GB 2064-1980
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WITHDRAWN published on 1.1.1980
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GB/T 20641-2006
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Empty enclosures for low-voltage switchgear and control gear assemblies—General requirements
WITHDRAWN published on 8.11.2006
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GB/T 20643.1-2006
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Special environmental condition - Environmental test method - Part 1: General and guidance
WITHDRAWN published on 8.11.2006
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GB/T 20643.2-2008
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Specific environment condition - Environmental test methods - Part2 Artificial environment test method and guidance - Electric and electronic products(including communication products)
WITHDRAWN published on 24.4.2008
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GB/T 20643.3-2006
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Special environmental condition - Environmental test method - Part 3: Artificial environmental test method and guidance - Polymer material
WITHDRAWN published on 8.11.2006
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GB/T 20644.1-2006
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Special environmental condition - Guidance for choosing - Part 1: Metals protection
WITHDRAWN published on 8.11.2006
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GB/T 20644.2-2006
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Specific environmental condition - Guidance for choosing - Part 2: Polymer materials
WITHDRAWN published on 8.11.2006
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