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Standards GB - Chinese national standards - Page 6981
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 2207-1991
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(The parts and units of jigs and fixtures. Directional keys)
WITHDRAWN published on 1.1.1991
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GB/T 22071.1-2008
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Test guide for instrument transformers—Part 1:current transformers
WITHDRAWN published on 30.6.2008
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GB/T 22071.2-2008
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Test guide for instrument transformers—Part 2:Inductive voltage transformers
WITHDRAWN published on 30.6.2008
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GB/T 22072-2008
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Specifications and technical requirements for dry-type amorphous alloy core distribution transformers
WITHDRAWN published on 30.6.2008
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GB/Z 22074-2008
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Reliability test method for moulded case circuit-breakers
WITHDRAWN published on 30.6.2008
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GB/T 22076-2008
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Pneumatic fluid power—Cylindrical quick-action couplings—Plug connecting dimensions,specifications,application guidelines and testing
WITHDRAWN published on 1.7.2008
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GB/T 22077-2008
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Overhead electrical conductors—Creep test procedures for stranded conductors
WITHDRAWN published on 30.6.2008
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GB/T 22079-2008
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Polymeric insulators for indoor and outdoor use with a nominal voltage > 1 000 V—General definitions,test methods and acceptance criteria
WITHDRAWN published on 30.6.2008
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GB/T 2208-1991
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(The parts and units of jigs and fixtures. V-shaped block)
WITHDRAWN published on 1.1.1991
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GB/T 22080-2008
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Information technology—Security techniques—Information security management systems—Requirements
WITHDRAWN published on 19.6.2008
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