DIN V ENV 12140:1996
水果汁和蔬菜汁.果汁糖份中稳定的碳同位素(<(hoch)13>C/<(hoch)12>C)比例测定.同位素比例质谱分析法
Fruit and vegetable juices - Determination of the stable carbon isotope ratio (<(hoch)13>C/<(hoch)12>C) of sugars from fruit juices - Method using isotope ratio mass spectrometry; German version ENV 12140:1996