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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
Microbeam analysis—Volume electron microscopy—FIB-SEM imaging method for 3D-structure of biological samples
Execute Date: september 2026
Standard published on 27.2.2026
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Particle—Measurement of specific heat capacity—Adiabatic calorimetry
Execute Date: september 2026
Standard published on 27.2.2026
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Test method of elastic modulus for oil well cement slurry
Execute Date: september 2026
Standard published on 27.2.2026
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Method for determining air content of cement mortar—Pressure method
Execute Date: september 2026
Standard published on 27.2.2026
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Analytical methods for chemical composition of resin-based artificial stone
Execute Date: september 2026
Standard published on 27.2.2026
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Thermoplastic elastomer—Determination of volatile organic compounds—Thermodesorption and gas chromatographic method with mass spectrometric detection
Execute Date: september 2026
Standard published on 27.2.2026
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Technical specification for application of backfilling used steel slag for mine rehabilitation
Execute Date: september 2026
Standard published on 27.2.2026
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Micro and mini channel heat exchangers
Execute Date: september 2026
Standard published on 27.2.2026
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Additive manufacturing—Specification for aluminum alloy and its composite components by laser powder bed fusion
Execute Date: september 2026
Standard published on 27.2.2026
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Additive manufacturing—Specification for data interfaces
Execute Date: september 2026
Standard published on 27.2.2026
Selected format:Latest update: 2026-07-17 (Number of items: 2 288 561)
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