DIN EN 18034:2023-12 藻类和藻类产品或中间体 取样和分析方法 叶绿素a含量的测定;德语版和英语版 prEN 18034:2023
Algae and algae products or intermediates - Methods of sampling and analysis - Determination of chlorophyll a content; German and English version prEN 18034:2023 / Note: Date of issue 2023-11-03