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Standards GB - Chinese national standards - Page 537
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 15617-2025
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Microbeam analysis—Electron probe microanalysis—Quantitative analysis of silicate minerals
Standard published on 29.8.2025
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GB 15618-2018
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Soil environment quality risk control standard for soilcontamination of agriculture land
Standard published on 13.7.2018
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GB/T 15619-2005
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Mechanical vibration and shock-Human exposure-Vocabulary
Standard published on 13.5.2005
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GB/T 15620-2025
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Solid wire electrodes,solid strip electrodes, solid wires and solid rods for fusion welding of nickel and nickel alloys
Standard published on 30.6.2025
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GB/T 15622-2023
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Hydraulic cylinder—Test method
Standard published on 27.11.2023
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GB/T 15623.1-2018
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Hydraulic fluid power—Electrically modulated hydraulic control valves—Part 1: Test methods for four-port directional flow-control valves
Standard published on 6.2.2018
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GB/T 15623.2-2017
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Hydraulic fluid power—Electrically modulated hydraulic control valves—Part 2: Test methods for three-port directional flow-control valves
Standard published on 1.11.2017
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GB/T 15623.3-2022
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Hydraulic fluid power—Electrically modulated hydraulic control valves—Part 3: Test methods for pressure control valves
Standard published on 12.10.2022
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GB/T 15624-2011
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Guidelines for standardization of services
Standard published on 30.12.2011
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GB/T 15625-2014
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Guidelines for technical evaluation of terminological database
Standard published on 6.5.2014
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