DIN ISO 11665-1 (2010-06)被替代
Measurement of radioactivity in the environment - Air Part 1: Radon-222 and its short-lived decay products in the atmospheric environment: their origins and measurement methods (ISO/DIS 11665-1 :2009)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
專家解讀視頻
