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Standards GB - Chinese national standards - Page 324
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 13748.4-2013
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Chemical analysis methods of magnesium and magnesium alloys - Part 4Determination of manganese content - Periodate spectrophotometric method
Standard published on 6.9.2013
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GB/T 13748.6-2005
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Chemical analysis methods of magnesium and magnesium alloys Determination of silver content Flame atomic absorption spectrophotometric method
Standard published on 26.7.2005
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GB/T 13748.7-2013
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Chemical analysis methods of magnesium and magnesium alloys - Part 7Determination of zirconium content
Standard published on 6.9.2013
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GB/T 13748.8-2013
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Chemical analysis methods of magnesium and magnesium alloys - Part 8Determination of rare earth content - Gravimetric method
Standard published on 6.9.2013
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GB/T 13748.9-2013
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Chemical analysis methods of magnesium and magnesium alloys - Part 9Determination of iron content - Orthopenanthroline spectrophotometric method
Standard published on 6.9.2013
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GB/T 13749-2022
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Impact pile driver—Code of practice of safety operation
Standard published on 12.10.2022
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GB/T 13750-2023
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Vibratory pile driving and extracting equipment—Safety operation rules
Standard published on 7.9.2023
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GB/T 13751-2019
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Earth-moving machinery—Backhoe loaders—Methods of tests
Standard published on 30.8.2019
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GB/T 13752-2017
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Design rules for tower cranes
Standard published on 28.2.2017
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GB/T 13754-2017
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Test methods of thermal output of heating radiators
Standard published on 31.5.2017
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