ISO 11665-2:2019 放射性在环境中的测量 - 空气:氡-222 - 第2部分:用于确定其短寿命衰变产物的平均电位α能量浓度的综合测量方法
Measurement of radioactivity in the environment — Air: radon-222 — Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products