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Standards GB - Chinese national standards - Page 534
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 15498-2017
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Enterprise standards system—Fundamental supports
Standard published on 29.12.2017
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GB/T 15499-1995
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The lost workdays standard for injury accidents
Standard published on 10.3.1995
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GB 15499-2025
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Determination of lost workdays for work safety accidents injury
Execute Date: january 2027
Standard published on 31.12.2025
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GB/T 155-2017
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Defects in logs
Standard published on 29.12.2017
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GB/Z 155-2025
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General principles of sodium ion battery cathode materials
Standard published on 3.12.2025
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GB/T 1550-2018
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Test methods for conductivity type of extrinsic semiconducting materials
Standard published on 28.12.2018
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GB/T 15501-1995
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Air quality--Determination of nitrobenzene(mononitro and dinitro-compound)--Reduction by zinc-N-(1-Naphthyl) ethylene diamine dihydrochloride spectrophotometric method
Standard published on 19.1.1995
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GB/T 15502-1995
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Air quality--Determination of aniline--N-(1-naphthyl)ethylene diamine dihydrochloride spectrophotometric method
Standard published on 19.1.1995
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GB/T 15503-1995
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Water quality--Determination of vanadium--BPHA extraction spectrophotometric method
Standard published on 19.1.1995
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GB/T 15504-1995
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Water quality--Determination of carbon disulfide--Diethylamine cupric acetate spectrophotometric method
Standard published on 19.1.1995
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