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Standards GB - Chinese national standards - Page 235
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 12854-1991
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Blank detail specification for pulse modulator tubes
Standard published on 28.4.1991
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GB/T 12855-1991
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Application and care for small power transmitting tubes
Standard published on 28.4.1991
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GB/T 12856-1991
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Programming languages BASIC subset
Standard published on 28.4.1991
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GB/T 12857-1991
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Methods of measurement under conditions different from broadcast signal standards on receivers for television broadcast transmissions
Standard published on 28.4.1991
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GB/T 12858-1991
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Environment requirements and testmethods for ground radio-navigation equipments
Standard published on 28.4.1991
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GB/T 12859.1-2012
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Piezoelectric ceramic resonators - A specification in the IEC quality assessment System for electronic components(IECQ) - Part 1: Generic specification-Qualification approval
Standard published on 5.11.2012
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GB/T 12859.2-2012
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Piezoelectric ceramic resonators - A specification in the IEC quality assessment System for electronic components (IECQ) - Part 2: Sectional specification-Qualification approval
Standard published on 5.11.2012
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GB/T 12859.201-2012
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Piezoelectric ceramic resonators - A specification in the quality assessment System for electronic components - Part 2-1: Blank detail specification-Assessment level E
Standard published on 5.11.2012
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GB/T 12864-1997
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Piezoelectric ceramic filters for use in electronic equipment A specification in the quality assessment system for electronic components Part 2:Sectional specification—Qualification approval
Standard published on 26.12.1997
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GB/T 12865-1997
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Piezoelectric ceramic filters for use in electronic equipment A specification in the quality assessment system for electronic components Part 2:Sectional specification—Qualification approval Section 1:Blank detail specification—Assessment level E
Standard published on 26.12.1997
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