Tea — Determination of alkalinity of water-soluble ash
茶叶;水溶性灰分碱度的测定
发布日期:
1975-12-01
该方法包括使用甲基橙作为指示剂,用标准盐酸溶液滴定测定水溶性灰分的滤液。
The method consists in titrating of the filtrate from the determination of water-soluble ash, whith standard hydrochloric acid solution, using methyl orange as indicator.