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Standards GB - Chinese national standards - Page 4313
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/Z 43592.1-2023
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Nanotechnologies—Magnetic nanomaterials—Part 1: Specification of characteristics and measurements for magnetic nanosuspensions
Standard published on 28.12.2023
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GB/Z 43592.2-2025
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Nanotechnologies—Magnetic nanomaterials—Part 2: Specification of characteristics and measurement methods for nanostructured magnetic beads for nucleic acid extraction
Standard published on 3.12.2025
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GB/T 43593-2023
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Ferrite cores—Standard inductance factor for gapped cores and its tolerance
Standard published on 28.12.2023
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GB/T 43594-2023
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General specification for uniform light source
Standard published on 28.12.2023
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GB/T 43595-2023
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Directives for commissioning and operation of hydraulic turbines,pump-turbines and storage pumps
Standard published on 28.12.2023
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GB/T 43596-2023
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The calibration method of the grayscale standard display function for image
Standard published on 28.12.2023
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GB/T 43597-2023
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Test method for parameters of thermoelectric terahertz detector
Standard published on 28.12.2023
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GB/T 43598-2023
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Nanotechnology—Measurement for oxygen content and C/O of graphene powder—X-ray photoelectron spectroscopy
Standard published on 28.12.2023
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GB/T 43599-2023
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Petroleum drilling and production equipment—Evaluation and testing of mechanical cement plugs
Standard published on 28.12.2023
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GB/T 43600-2023
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The flag of the Young Pioneers of China
Standard published on 28.12.2023
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