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Standards GB - Chinese national standards - Page 209
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 12604.8-2014
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Non-destructive testingTerminologyTerms used in neutron testing
Standard published on 6.5.2014
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GB/T 12604.9-2021
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Non-destructive testing—Terminology—Infrared thermography
Standard published on 20.8.2021
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GB/T 12605-2008
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Non-destructive testing Test methods for radiographic testing of circumferential fusion-welded butt joints in metallic pipes and tubes
Standard published on 13.5.2008
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GB/T 12606-2016
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Automated full peripheral flux leakage testing of seamless and welded (except submerged arc-welded) ferromagnetic steel tubes for the detection of longitudinal and/or transverse imperfections
Standard published on 29.8.2016
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GB/T 12608-2003
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Thermal spraying--Wiresrods and cords for flame and arc spraying--Classification and technical supply condition
Standard published on 29.10.2003
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GB/T 12609-2005
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Electrodeposited metallic coatings and related finishes -- Sampling procedures for inspection by attributes
Standard published on 12.10.2005
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GB/T 12611-2008
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Technical requirements of quality control for metal parts to be coated
Standard published on 1.7.2008
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GB/T 12612-2005
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General specification for multifunctional solution of iron and steel surface treatment
Standard published on 23.6.2005
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GB/T 12613.1-2011
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Plain bearings - Wrapped bushes - Part 1Dimensions
Standard published on 30.12.2011
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GB/T 12613.2-2011
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Plain bearings - Wrapped bushes - Part 2: Test data for outside and inside diameters
Standard published on 30.12.2011
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