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Standards GB - Chinese national standards - Page 8232
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 5274-1985
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Gas analysis—Preparation of calibration gas mixtures—Weighing methods
WITHDRAWN published on 1.8.1985
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GB/T 5274-2008
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Gas analysis—Preparation of calibration gas mixtures—Gravimetric method
WITHDRAWN published on 18.6.2008
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GB/T 5275-1985
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Gas analysis--Preparation of calibration gas mixtures--Permeation method
WITHDRAWN published on 1.8.1985
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GB/T 5275-2005
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Gas analysis—Preparation of calibration gas mixtures—Permeation method
WITHDRAWN published on 18.5.2005
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GB/T 5275.1-2014
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Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 1:Methods of calibration
WITHDRAWN published on 8.7.2014
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GB/T 5275.2-2014
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Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 2:Volumetric pumps
WITHDRAWN published on 8.7.2014
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GB/T 5275.6-2014
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Gas analysis—Preparation of calibration gas mixtures using dynamic volumetric methods—Part 6:Gritical orifices
WITHDRAWN published on 8.7.2014
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GB/T 5275.7-2014
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Gas analysisPreparation of calibration gas mixtures using dynamic volumetric methodsPart 7: Thermal mass-flow controllers
WITHDRAWN published on 8.7.2014
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GB/T 5276-1985
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Fasteners. Bolts,screws,studs and nuts. Symbols and designations of dimensions
WITHDRAWN published on 1.8.1985
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GB/T 528-1998
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Rubber,vulcanized or thermoplastic—Determination of tensile stress-strain properties
WITHDRAWN published on 4.11.1998
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