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Standards GB - Chinese national standards - Page 4966
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 5169.20-2021
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Fire hazard testing for electric and electronic products—Part 20: Surface spread of flame—Summary and relevance of test methods
Standard published on 11.10.2021
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GB/T 5169.21-2017
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Fire hazard testing for electric and electronic products—Part 21: Abnormal heat—Ball pressure test method
Standard published on 29.12.2017
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GB/T 5169.22-2015
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Fire hazard testing for electric and electronic products—Part 22: Test flames—50W flame—Apparatus and confirmational test method
Standard published on 9.10.2015
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GB/T 5169.23-2008
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Fire hazard testing for electric and electronic products - Part 23: Test flames-500W vertical flame test method for tubular polymeric materials
Standard published on 30.12.2008
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GB/T 5169.23-2024
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Fire hazard testing for electric and electronic products—Part 23:Test flames—500 W vertical flame test method for tubular polymeric materials
Standard published on 29.6.2024
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GB/T 5169.24-2018
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Fire hazard testing for electric and electronic products—Part 24: Guidance for assessing the fire hazard—Insulating liquids
Standard published on 17.9.2018
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GB/T 5169.25-2018
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Fire hazard testing for electric and electronic products—Part 25: Smoke obscuration—General guidance
Standard published on 17.9.2018
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GB/T 5169.26-2018
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Fire hazard testing for electric and electronic products—Part 26: Smoke obscuration—Summary and relevance of test methods
Standard published on 17.9.2018
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GB/T 5169.29-2020
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Fire hazard testing for electric and electronic products—Part 29: Heat release—General guidance
Standard published on 19.11.2020
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GB/T 5169.30-2020
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Fire hazard testing for electric and electronic products—Part 30: Heat release—Summary and relevance of test methods
Standard published on 19.11.2020
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