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Standards GB - Chinese national standards - Page 6232
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 15483.1-1999
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Proficiency testing by interlaboratory comparisons—Part 1:Development and operation of proficiency testing schemes
WITHDRAWN published on 8.3.1999
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GB/T 15483.2-1999
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Proficiency testing by interlaboratory comparisons—Part 2:Selection and use of proficiency testing schemes by laboratory accreditation bodies
WITHDRAWN published on 8.3.1999
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GB/T 15485-1995
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Acoustics—methods for the calculation of the articulation index of speech
WITHDRAWN published on 3.7.1995
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GB/T 15486-1995
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Calibration and testing laboratory accreditation systems—General requirements for operation and recognition
WITHDRAWN published on 14.2.1995
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GB/T 15487-1995
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Methods of flow measurement for displacement compressor
WITHDRAWN published on 27.1.1995
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GB/T 15488-1995
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Color filter glass
WITHDRAWN published on 13.1.1995
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GB/T 15489.6-1995
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Color filter glass test methods Fluorescence characteristic
WITHDRAWN published on 13.1.1995
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GB 1549-1979
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WITHDRAWN published on 1.1.1979
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GB/T 1549-1994
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Methods of chemical analysis of soda lime-alumina and borosilicate glass
WITHDRAWN published on 22.12.1994
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GB/T 15490-1995
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General specification for solid state lasers
WITHDRAWN published on 21.2.1995
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