Determination of substances characteristic of green and black tea — Part 1: Content of total polyphenols in tea — Colorimetric method using Folin-Ciocalteu reagent
绿茶和红茶物质特性的测定第1部分:茶叶中总多酚的含量——Folin-Ciocalteu试剂比色法
发布日期:
2005-03-16
ISO 14502-1:2005规定了使用Folin-Ciocalteu酚试剂通过比色法测定叶茶和速溶茶中总多酚含量的方法。它适用于绿茶和红茶产品。
ISO 14502-1:2005 specifies a method for the determination of the total polyphenol content of leaf teas and instant teas by a colorimetric assay using Folin-Ciocalteu phenol reagent. It is applicable to both green and black tea products.