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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
Fire hazard testing for electric and electronicproducts—Part 31: Surface spread of flame—General guidance
Standard published on 12.10.2022
Selected format:Fire hazard testing for electric and electronic products—Part 33: Guidance for assessing the fire hazard—Ignitability—General guidance
Standard published on 7.9.2023
Selected format:Fire hazard testing for electric and electronic products—Part 34: Guidance for assessing the fire hazard—Ignitability—Summary and relevance of test methods
Standard published on 7.9.2023
Selected format:Fire hazard testing for electric and electronic products—Part 35: Corrosion damage effects of fire effluent—General guidance
Standard published on 5.10.2025
Selected format:Fire hazard testing for electric and electronic products—Part 36: Corrosion damage effects of fire effluent—Summary and relevance of test methods
Standard published on 5.10.2025
Selected format:Fire hazard testing for electric and electronic productsPart 38: Toxicity of fire effluentSummary and relevance of test methods
Standard published on 3.9.2014
Selected format:Fire hazard testing for electric and eletronic products—Part 39: Toxicity of fire effluent—Use and interpretation of test results
Standard published on 9.10.2015
Selected format:Fire hazard testing for electric and eletronic products—Part 40: Toxicity of fire effluent—Estimation of toxic potency—Apparatus and test method
Standard published on 9.10.2015
Selected format:Fire hazard testing for electric and eletronic products—Part 41: Toxicity of fire effluent—Estimation of toxic potency—Calculation and interpretation of test results
Standard published on 9.10.2015
Selected format:Fire hazard testing for electric and eletronic productsPart 42: Test flamesConfirmatory testsGuidance
Standard published on 17.12.2013
Selected format:Latest update: 2026-08-14 (Number of items: 2 293 479)
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