DIN EN 18054 E:2024 食品真實性 通過元素分析儀 同位素比質譜法 (EA-IRMS) 測定食品中的 C 和/或 N 同位素比 草案
Draft Document - Food authenticity - Determination of C and/or N isotope ratios in food by Elemental Analyser - Isotope Ratio Mass Spectrometry (EA-IRMS); German and English version prEN 18054:2024