DIN EN 12014-7-1998 食品.硝酸盐和/或亚硝酸盐含量测定.第7部分:镉还原后蔬菜和蔬菜制品中硝酸盐含量测定用连续流量法
Foodstuffs - Determination of nitrate and/or nitrite content - Part 7: Continuous flow method for the determination of nitrate content of vegetables and vegetable products after cadmium reduction; German version EN 12014-7:1998
The document specifies a continuous flow method (CF-method) for the determination of nitrate content of vegetable products having a nitrate content of 900 mg/kg to 5200 mg/kg (calculated as nitrate ion). Experienes have shown that the method may also applied for vegetables and vegetable products having a nitrate content of greater than 50 mg/kg (calculated as nitrate ion).