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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
Pesticide--Guidelines for the field efficacy trials()--Part 77:Insecticides against thrips on rice
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 78:Insecticides against blossom midge on wheat
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 79:Insecticides against aphids on wheat
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials(I)--Insecticides against leaf minor on apple
Standard published on 1.2.2000
Selected format:Pesticide—Guidelines for the field efficacy trials—Part 8: Insecticides against apple leaf roller
Standard published on 27.2.2026
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 80:Insecticides against armyworm
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 81:Insecticides against golden apple snail on rice
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 82:Fungicides against blister blight of tea
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 83:Fungicides against brown blight of tea
Standard published on 3.3.2004
Selected format:Pesticide--Guidelines for the field efficacy trials()--Part 84:Fungicides against ruse ofpeanut
Standard published on 3.3.2004
Selected format:Latest update: 2026-09-09 (Number of items: 2 300 143)
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