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Standards GB - Chinese national standards - Page 4907
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 51274-2017
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Technical standard for supervision and alarm system engineering of urban utility tunnel
Standard published on 1.1.2017
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GB/T 51275-2017
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Standard for monitoring of subgrade on soft ground
Standard published on 1.1.2017
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GB 51276-2018
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Standard for design of generallayout and transportation for coal enterprises
Standard published on 16.3.2018
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GB/T 51277-2018
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Standard for construction and acceptance of coal mine shaft of freezing method
Standard published on 16.1.2018
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GB/T 51278-2018
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Technical standard for LTE digital cellular mobile communication network engineering
Standard published on 16.1.2018
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GB/T 51279-2018
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Standard for engineering technology of high-speed railway coverage of public mobile telecommunications
Standard published on 16.1.2018
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GB/T 51280-2018
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Standard for sediment design of engineering
Standard published on 16.1.2018
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GB/T 51281-2018
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Standrad for engineering acceptance of synchronous digital hierarchy (SDH) optical fiber transmission system
Standard published on 16.1.2018
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GB 51282-2018
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Standard for design of mine haulage engineering for open pit in coal industry
Standard published on 1.1.2018
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GB 51283-2020
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Fire protection standard for engineering design of fine chemical enterprise
Standard published on 16.1.2020
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