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Standards GB - Chinese national standards - Page 6724

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GB 19212.4-2005 WITHDRAWN

Safety of power transformers, power supply units and similar devices—Part 4:Particular requirements for ignition transformers for gas and oil burners

WITHDRAWN published on 9.10.2005

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GB 19212.5-2006 WITHDRAWN

Safety of power transformers, power supply units and similar—Part 5:Particular requirements for isolating transformers for general use

WITHDRAWN published on 25.8.2006

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GB/T 19212.5-2011 WITHDRAWN

Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100V - Part 5: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers

WITHDRAWN published on 16.6.2011

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GB 19212.6-2006 WITHDRAWN

Safety of power transformers, power supply units and similar—Part 6:Particular requirements for shaver transformers and shaver supply units

WITHDRAWN published on 25.8.2006

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GB 19212.6-2013 WITHDRAWN

Safety of transformers,reactors,power supply units and combinations thereof—Part 6:Particular requirements and test for transformer for shavers,power supply units for shavers and shaver supply units

WITHDRAWN published on 17.12.2013

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