ISO 1026:1982 水果和蔬菜制品.用减压干燥法测定干物质含量和用共沸蒸馏法测定水含量

标准编号：ISO 1026:1982

中文名称：水果和蔬菜制品.用减压干燥法测定干物质含量和用共沸蒸馏法测定水含量

英文名称：Fruit and vegetable products — Determination of dry matter content by drying under reduced pressure and of water content by azeotropic distillation

发布日期：1982-03

标准范围

干物质含量的测定方法包括:混合后，在70°C的压力下，将散布在弯曲表面上的液体或半液体产品，或与惰性粉末混合的糊状产品加热至恒定质量。测定水含量的方法包括用不溶于水的挥发性溶剂以蒸汽的形式夹带水，在回流阱中冷凝和分离，回收和测量刻度管中的水体积。

The method of determination of dry matter content consists in heating to constant mass, after mixing, of liquid or semi-liquid products spread over an absobent surface, or of pasty products mixed with an inert powder, at 70 °C under reduced pressure. The method of determin of water content consists in entraining of the water in the form of vapour by a volatile solvent immiscible with water, condensing and separating in a reflux trap, recovering and measuring of the volume of water in a graduated tube.

标准预览图