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Standards GB - Chinese national standards - Page 170
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 12297.2-2024
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Cardiovascular implants—Cardiac valve prostheses—Part 2: Surgically implanted heart valve substitutes
Standard published on 1.1.2024
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GB/Z 123.1-2025
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Nanomanufacturing—Material specifications—Luminescent nanomaterials—Part 1Blank detail specification
Standard published on 3.12.2025
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GB/Z 123.2-2025
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Nanomanufacturing—Material specifications—Luminescent nanomaterials—Part 2:Detail specification for general lighting and display applications
Standard published on 3.12.2025
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GB/T 12300-1990
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Test methods of safe operating area for power transistors
Standard published on 15.3.1990
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GB/T 12301-1999
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Detection methods for harmful gas evolved from non-dangerous cargo in holds
Standard published on 8.11.1999
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GB/T 12303-2009
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Measurement of sound pressure level for sound signal appliances by seagoing vessel
Standard published on 31.3.2009
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GB/T 12305.6-1997
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Metalliccoating--Test methods for electrodeposited gold and gold alloy coatings--Part 6:Determination of the presence of residual salts
Standard published on 27.6.1997
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GB/T 12308-1990
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Specification for package carton of canned foods
Standard published on 9.4.1990
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GB/T 12309-1990
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Industry corn starch
Standard published on 20.4.1990
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GB/T 1231-2024
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High strength bolts with large hexagon head assemblies for steel structures
Standard published on 29.9.2024
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