DIN EN ISO 11665-3 E:2019 文件草案 环境中放射性的测量 空气:radon-222 第3部分:其短寿命衰变产物的潜在 α 能量浓度的点测量方法(ISO/FDIS 11665-3:2019) 德文版和英文版 prEN I...
Draft Document - Measurement of radioactivity in the environment - Air: radon-222 - Part 3: Spot measurement method of the potential alpha energy concentration of its short-lived decay products (ISO/FDIS 11665-3:2019); German and English version prEN I...