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Standards GB - Chinese national standards - Page 302
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 13577-2006
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Mill for rubber and plastics
Standard published on 9.1.2006
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GB/T 13577-2026
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Mill for rubber and plastics
Execute Date: december 2026
Standard published on 25.5.2026
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GB/T 13578-2010
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Rubber and plastics calender
Standard published on 26.9.2010
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GB/T 13578-2026
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Rubber and plastics calender
Execute Date: february 2027
Standard published on 2.7.2026
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GB/T 13579-2017
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Tyre shaping and curing press
Standard published on 29.12.2017
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GB/T 1358-2009
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Cylindrical helical spring seriate sizes
Standard published on 16.3.2009
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GB/T 13580.1-1992
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General principles for analytical methods of the wet precipitation
Standard published on 1.7.1992
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GB/T 13580.10-1992
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Determination of fluoride in the wet precipitation--Fluor reagent spectrophotometry
Standard published on 1.7.1992
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GB/T 13580.11-1992
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Determination of ammonium in the wet precipitation
Standard published on 1.7.1992
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GB/T 13580.12-1992
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Determination of sodium andpotassium in the wet precipitation--Atomic absorption spectrophotometry
Standard published on 1.7.1992
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