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Standards GB - Chinese national standards - Page 541
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 15558.3-2023
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Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 3: Fittings
Standard published on 27.11.2023
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GB/T 15558.4-2023
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Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 4:Valves
Standard published on 27.11.2023
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GB/T 15558.5-2023
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Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 5:Fitness for purpose of the system
Standard published on 27.11.2023
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GB/T 15560-1995
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Standard test method for short-time hydraulic failure and resistance to constant internal pressure of the plastics pipes for the transport of fluids
Standard published on 2.5.1995
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GB/T 15561-2024
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Digital indication rail-weighbridges
Standard published on 31.12.2024
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GB 15562.1-1995
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Graphical signs for environmental protection--Discharge outlet(source)
Standard published on 10.5.1995
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GB 15562.2-1995
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Graphical signs for environmental protection--Solid waste storage (disposal) site
Standard published on 10.5.1995
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GB 15563-2024
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General technical specifications for mixture of high explosives and industrial explosives
Standard published on 23.8.2024
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GB/T 15565-2020
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Graphical symbols—Terms
Standard published on 31.3.2020
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GB/T 15566.1-2020
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Public information guidance system—Setting principles and requirements—Part 1: General principles
Standard published on 31.3.2020
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