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Standards GB - Chinese national standards - Page 6213
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 15149-1994
WITHDRAWN
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Performance and testing of teleprotection equipment of power systems narrow-band command systems
WITHDRAWN published on 7.7.1994
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GB/T 15149.2-1998
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Performance and testing of teleprotection eguipment of power systems Part 2:Analogue comparison systems
WITHDRAWN published on 13.8.1998
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GB/T 1515-1979
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Method for determination of phosphorus content in manganese ores
WITHDRAWN published on 28.2.1979
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GB/T 15151.1-1994
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Generic specification for frequency counters
WITHDRAWN published on 6.7.1994
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GB/T 15151.2-1994
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Measuring methods for frequency counters
WITHDRAWN published on 6.7.1994
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GB/T 15152-1994
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Methods of judging degradation for interference to mobile radiocommunication in the presence of impulsive noise
WITHDRAWN published on 6.7.1994
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GB/T 15152-2006
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Methods of judging degradation for interference to mobile radiocommunication in the presence of impulsive noise
WITHDRAWN published on 6.3.2006
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GB/T 15153-1994
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Operating conditions for telecontrol equipment and systems. Environmental conditions and power supplies
WITHDRAWN published on 1.1.1994
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GB/T 15153.1-1998
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Telecontrol equipment and systems Part 2:Operating conditions Section 1:Power supply and electromagnetic compatibility
WITHDRAWN published on 13.8.1998
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GB/T 15156-1994
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Generic specification for piezoelectric ceramic transducing elements
WITHDRAWN published on 26.7.1994
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