DIN ISO 11665-3-2013 环境辐射性测量.空气:氡-222.第3部分:其短暂寿命衰减产物的潜在阿尔法能量浓度点测法(ISO 11665-3-2012)
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 11665-3:2012)