DIN EN ISO 11665-3-2015 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);德文版本EN ISO 11665-3-2015
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); German version EN ISO 11665-3:2015