EN ISO 11665-3:2015 环境中放射性的测量.大气:氡-222.第3部分:其短期衰变产物潜在α能量浓度现场测量法(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