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Standards GB - Chinese national standards - Page 242
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 12964-2018
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Monocrystalline silicon polished wafers
Standard published on 17.9.2018
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GB/T 12965-2018
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Monocrystalline silicon as cut wafers and lapped wafers
Standard published on 17.9.2018
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GB/T 12966-2022
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The methods for determining aluminium and aluminium alloys conductivity using eddy current
Standard published on 9.3.2022
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GB/T 12967.1-2020
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Test methods for anodic oxidation coatings and organic polymer coatings of aluminium and aluminium alloysPart 1: Measurement of abrasion resistance
Standard published on 2.6.2020
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GB/T 12967.3-2022
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Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 3 : Salt spray test
Standard published on 9.3.2022
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GB/T 12967.4-2022
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Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 4: Determination of ultraviolet light and heat resistance
Standard published on 9.3.2022
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GB/T 12967.5-2022
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Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 5:Assessment of resistance to cracking
Standard published on 9.3.2022
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GB/T 12967.6-2022
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Test methods for anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Part 6: Determination of color and appearance
Standard published on 9.3.2022
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GB/T 12968-1991
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Eddy current decay method formeasurement of resistivity and residual resistance ratio of pure metals
Standard published on 4.6.1991
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GB/T 12969.1-2007
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Method of ultrasonic inspection for titanium and titanium alloy tubes
Standard published on 23.11.2007
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