该欧洲标准规定了硝酸盐含量为900mg/kg至5200mg/kg（以硝酸根离子计算）的蔬菜和蔬菜产品的硝酸盐含量的连续流动法（CF法）。注意:经验表明，该方法也可用于硝酸盐含量大于50 mg/kg（硝酸根离子计算）的蔬菜和蔬菜产品

This European Standard specifies a continuous flow method (CF-method) for the determination of nitrate content of vegetables and vegetable products having a nitrate content of 900 mg/kg to 5200 mg/kg (calculated as nitrate ion). Note: Experiences 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).