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Standards GB - Chinese national standards - Page 102
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 11265-1989
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Fish plates for light rails
Standard published on 31.3.1989
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GB/T 11266-1989
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Tie plates for light rails
Standard published on 31.3.1989
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GB/T 1127-2023
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Woodruff keyseat cutters
Standard published on 7.9.2023
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GB/T 11270.1-2021
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Superabrasive products—Diamond circular saw blade—Part 1Welded saw blades
Standard published on 21.5.2021
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GB/T 11270.2-2021
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Superabrasive products—Diamond circular saw blade—Part 2Sintered saw blades
Standard published on 21.5.2021
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GB/T 11275-2007
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Surface active agents - Determination of water content
Standard published on 13.8.2007
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GB/T 11276-2007
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Surface active agents - Determination of the critical micellization concentration
Standard published on 13.8.2007
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GB/T 11277-2012
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Surface active agents-Non-ionic surface active agents - Determination of cloud point index(water number) - Volumetric method
Standard published on 31.12.2012
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GB/T 11281-2009
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General specification for reduction gearhead of electrical micro-machine
Standard published on 30.9.2009
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GB/T 11287-2000
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Electrical relays--Part 21:Vibrationshockbump and seismic tests on measuring relays and protection equipment--Section one:Vibration tests(sinusoidal)
Standard published on 3.1.2000
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