ISO 5521:1981 水果、蔬菜及其制品.二氧化硫的定性检验法

标准编号：ISO 5521:1981

中文名称：水果、蔬菜及其制品.二氧化硫的定性检验法

英文名称：Fruits, vegetables and derived products — Qualitative method for the detection of sulphur dioxide

发布日期：1981-08

标准范围

本方法适用于每千克2毫克或以上的产品。它包括对试验部分进行酸化，并通过淀粉指示剂纸释放的气体进行脱色，之前淀粉指示剂纸被微量碘蒸汽染成蓝色。

The method is applicable to products having contents of 2 mg or more per kilogram. It consists in acidification of a test portion and decolourizing by the liberated gas of a starch indicator paper previously coloured blue by a trace of iodine vapour.

标准预览图