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Standards GB - Chinese national standards - Page 414
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 14475-2024
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Horn loudspeakers—Measuring methods
Standard published on 26.10.2024
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GB/T 14477-2008
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Printing specifications for charts
Standard published on 20.6.2008
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GB/T 14478-2025
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Basic technical specification of inlet valves for large and medium-sized hydraulic turbines
Standard published on 28.2.2025
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GB/T 14479-1993
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Graphical symbols for transducers diagrams
Standard published on 27.6.1993
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GB/T 1448-2005
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Fiber-reinforced plastics composites-Determination of compressive properties
Standard published on 18.5.2005
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GB/T 14480.1-2015
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Non-destructive testing instruments—Equipment for eddy current examination—Part 1Instrument characteristics and verification
Standard published on 10.12.2015
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GB/T 14480.2-2015
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Non-destructive testing instruments—Equipment for eddy current examination—Part 2Probe characteristics and verification
Standard published on 10.12.2015
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GB/T 14480.3-2020
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Non-destructive testing instruments—Equipment for eddy current examination—Part 3: System characteristics and verification
Standard published on 14.12.2020
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GB/T 14481-2008
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Test procedure for single-phase synchronous machines
Standard published on 16.7.2008
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GB/Z 14482-2022
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Mechanical counter
Standard published on 9.3.2022
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