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Standards GB - Chinese national standards - Page 7390
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 2888-1991
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Methods of noise measurement for fans, blowers compressors and Roots blowers
WITHDRAWN published on 6.11.1991
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GB/T 28880-2012
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Non-destructive testing—Evaluating performance characteristics of ultrasonic pulse-echo testing systems without the use of electronic measurement instruments
WITHDRAWN published on 5.11.2012
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GB/T 28884-2012
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Seamless steel tubes for large volume gas cylinder
WITHDRAWN published on 5.11.2012
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GB/T 28885-2012
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Specifications for city gas service
WITHDRAWN published on 5.11.2012
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GB/T 28886-2012
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Plastic door for buildings
WITHDRAWN published on 5.11.2012
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GB/T 28887-2012
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Plastic window for buildings
WITHDRAWN published on 5.11.2012
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GB 2889-1982
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Plain bearings--Technical terminology
WITHDRAWN published on 1.1.1982
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GB/T 2889-1994
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Plain bearings—Terms, definitions and classification
WITHDRAWN published on 27.12.1994
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GB/T 2889.1-2008
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Plain bearings—Terms,definitions and classification—Part 1:Design,bearing materials and their properties
WITHDRAWN published on 25.8.2008
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GB/T 28892-2012
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Surface chemical analysis—X-ray photoelectron spectroscopy—Description of selected instrumental performance parameters
WITHDRAWN published on 5.11.2012
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