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Standards GB - Chinese national standards - Page 550
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 15711-2018
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Inspection of non-metallic inclusions of steel—Etching test method of tower samples
Standard published on 14.5.2018
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GB/T 15712-2016
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Microalloyed medium carbon steels
Standard published on 29.8.2016
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GB/T 15715-2014
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Performance evaluation for coal gravity separating equipment
Standard published on 28.4.2014
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GB/T 15716-2005
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Coal sizing equipment-Performance evaluation
Standard published on 15.7.2005
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GB/T 15717-2021
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Test method for vacuum-deposited metal thickness—Electric resistance method
Standard published on 11.10.2021
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GB/T 15718-2008
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Foam-in-place packaging materials
Standard published on 18.7.2008
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GB/T 15719-2011
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Foam-in-place packaging
Standard published on 20.7.2011
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GB/T 1572-2018
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Determination of clinkering property of coal
Standard published on 6.2.2018
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GB/T 15721.1-2009
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Prosthetics and orthotics - Limb deficiencies - Part 1: Method of describing limb deficiencies present at birth
Standard published on 30.9.2009
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GB/T 15721.2-2009
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Prosthetics and orthotics - Limb deficiencies - Part 2: Method of describing lower limb amputation stumps
Standard published on 30.9.2009
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