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Standards GB - Chinese national standards - Page 482
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 15050-2008
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Hand-knotted woolen carpet
Standard published on 16.6.2008
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GB/T 15052-2010
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Cranes - Safety signs and hazard pictorials - General principles
Standard published on 10.1.2011
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GB/T 15053-2008
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Standard method for using radiochromic film and polymethylmethacrylate dosimetry system to measure absorbed dose
Standard published on 19.9.2008
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GB/T 15054.1-2018
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Miniature screw threads—Part 1Profiles, general plan and basic dimensions
Standard published on 14.5.2018
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GB/T 15054.2-2018
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Miniature screw threads—Part 2Tolerances and limits of size
Standard published on 14.5.2018
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GB/T 15055-2021
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Permissible stamping variations in dimensions without tolerance indication
Standard published on 11.10.2021
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GB/T 15056-2017
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Casting surface roughness—Appraising method
Standard published on 1.11.2017
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GB/T 15057.1-1994
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Limestone for chemical industry--Methods of sampling and preparing
Standard published on 5.5.1994
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GB/T 15057.10-1994
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Limestone for chemical industry--Determination of content of loss on ignition--Gravimetric method
Standard published on 5.5.1994
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GB/T 15057.11-1994
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Limestone for chemical industry--Determination of size
Standard published on 5.5.1994
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