ICS 67.140.10 x 55 GB 中华人民共和国国家标准 GB/T8313—2018 代替GB/T8313—2008 茶叶中茶多酚和儿茶素类含量的检测方法 Determination of totalpolyphenols and catechins contentin tea (ISO 14502-1:2005,Determination of substances characteristic of green and black teaPart l:Content of total polyphenols in teaColorimetric method using Folin-Ciocalteu reagent;ISO 14502-2:2005,Determination of substances characteristic of green and black teaPart 2:Content of catechins in green teaMethodusinghigh-performanceliquidchromatography,NEQ) 2018-07-13发布 2018-11-01实施 国家市场监督管理总局 发布 中国国家标准化管理委员会