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Standards GB - Chinese national standards - Page 5049
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 5976-2006
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Wire rope grips
Standard published on 3.4.2006
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GB/T 5977-2019
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Platinum wires for resistance thermometers
Standard published on 10.5.2019
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GB 5980-2009
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Regulation on noise levels on board inland ships
Standard published on 9.3.2009
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GB/T 5981-2011
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Milking machine installations - Vocabulary
Standard published on 14.9.2011
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GB/T 5982-2017
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Thresher—Testing method
Standard published on 29.12.2017
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GB/T 5983-2013
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Test methods for seed cleaning machine
Standard published on 31.12.2013
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GB/T 5986-2000
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Test method for modulus of elasticity of thermostat metals
Standard published on 3.1.2000
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GB/T 5988-2022
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Refractory products—Determination of permanent change in dimensions on heating
Standard published on 9.3.2022
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GB/T 5989-2023
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Refractory products—Determination of refractoriness under load(differential method with rising temperature)
Standard published on 23.5.2023
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GB/T 5990-2021
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Refractory materials—Determination of thermal conductivity, specific heat capacity and thermal diffusivity(hot-wire method)
Standard published on 11.10.2021
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