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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
Denitration equipment of chemical industrial furnace
Standard published on 27.2.2026
Selected format:Livestock farming rubber sheets for dairy cattle—Specification
Standard published on 27.2.2026
Selected format:Microbeam analysis—Analytical electron microscopy—Calibration procedure of energy scale for elemental analysis by electron energy loss spectroscopy
Standard published on 27.2.2026
Selected format:Microbeam analysis—Quantitative analysis of rare earth minerals by electron probe microanalyzer
Standard published on 27.2.2026
Selected format:Microbeam analysis—Volume electron microscopy—FIB-SEM imaging method for 3D-structure of biological samples
Standard published on 27.2.2026
Selected format:Particle—Measurement of specific heat capacity—Adiabatic calorimetry
Standard published on 27.2.2026
Selected format:Test method of elastic modulus for oil well cement slurry
Standard published on 27.2.2026
Selected format:Method for determining air content of cement mortar—Pressure method
Standard published on 27.2.2026
Selected format:Analytical methods for chemical composition of resin-based artificial stone
Standard published on 27.2.2026
Selected format:Thermoplastic elastomer—Determination of volatile organic compounds—Thermodesorption and gas chromatographic method with mass spectrometric detection
Standard published on 27.2.2026
Selected format:Latest update: 2026-11-08 (Number of items: 2 209 204)
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