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Standards GB - Chinese national standards - Page 4938
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 4955-2005
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Metallic coatings -- Measurement of coating thickness -- Coulometric method by anodic dissolution
Standard published on 12.10.2005
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GB/T 4956-2025
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Non-magnetic coatings on magnetic substrates—Measurement of coating thickness—Magnetic method
Standard published on 31.10.2025
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GB/T 4957-2025
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Non-conductive coatings on non-magnetic electrically conductive base metals—Measurement of coating thickness—Amplitude-sensitive eddy-current method
Standard published on 31.10.2025
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GB/T 4959-2026
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Methods of measurement for the characteristics of sound reinforcement in auditoria
Standard published on 31.3.2026
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GB/T 4960.1-2010
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Glossary of terms - nuclear science and technology - part 1: Nuclear physics and nuclear chemistry
Standard published on 10.11.2010
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GB/T 4960.2-2023
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Glossary for nuclear science and technology—Part 2Fission reactor
Standard published on 27.11.2023
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GB/T 4960.3-2010
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Glossary of terms - nuclear science and technology - Part 3: Nuclear fuel and nuclear fuel cycle
Standard published on 10.11.2010
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GB/T 4960.4-2025
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Glossary of nuclear science and technology—Part 4:radionuclide
Standard published on 31.10.2025
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GB/T 4960.5-2025
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Glossary of nuclear science and technology—Part 5: Radiation protection and safety of radiation sources
Standard published on 5.10.2025
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GB/T 4960.6-2008
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Glossary of terms: nuclear science and technology - Nuclear instrumentation
Standard published on 19.9.2008
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