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Standards GB - Chinese national standards - Page 781
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 176-2026
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Biotechnology—Bioprocessing—General requirements and considerations for equipment systems used in the manufacturing of cells for therapeutic use
Standard published on 30.4.2026
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GB/T 17600.1-1998
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Steel--Conversion of elongation values--Part 1:Carbon and low alloy steels
Standard published on 7.12.1998
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GB/T 17600.2-1998
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Steel--Conversion of elongation values--Part 2: Austenitic steels
Standard published on 7.12.1998
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GB/T 17601-2023
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Refractory products—Determination of resistance to acid
Standard published on 6.8.2023
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GB/T 17602-1998
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Commercial hexanes
Standard published on 8.12.1998
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GB/T 17602-2018
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Commercial hexanes
Standard published on 28.12.2018
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GB/T 17603-2017
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Standard practice for outdoor exposure testing of photodegradable plastics
Standard published on 29.12.2017
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GB/T 17604-1998
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Rubber--Recommendations for the workmanship of pipe joint rings--Description and classification of imperfections
Standard published on 8.12.1998
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GB/T 17605-1998
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Petroleum andliquid petroleum products--Volumetric calibration of horizontal cylindrical metal tanks(Manual methods)
Standard published on 8.12.1998
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GB/T 17606-2009
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Determination of sulfur in crude-oil by energy-dispersive X-ray fluorescence spectrometry
Standard published on 8.4.2009
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