OENORM EN ISO 20714:2021
电子液体 电子尼古丁输送装置中使用的液体中尼古丁、丙二醇和甘油的测定 气相色谱法(ISO 20714:2019)
E-liquid - Determination of nicotine, propylene glycol and glycerol in liquids used in electronic nicotine delivery devices - Gas chromatographic method (ISO 20714:2019)