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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
Toxicological test methods for pesticides registration—Part 20: In vitro mammalian cell gene mutation test
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 21: Unscheduled DNA synthesis (UDS) test with mammalian liver cells in vivo
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 22:DNA damage and repair/unscheduled DNA synthesis in mammalian cells in vitro
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 23: Teratogenicity study
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 24: Two-generation reproduction toxicity study
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 25:Acute delayed neurotoxicity test
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 26: Chronic toxicity study
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 27: Carcinogenicity study
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 28: Combined chronic toxicity/carcinogenicity study
Standard published on 12.7.2017
Selected format:Toxicological test methods for pesticides registration—Part 29: Metabolism and toxicokinetics study
Standard published on 12.7.2017
Selected format:Latest update: 2026-05-02 (Number of items: 2 275 366)
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