Measurement of radioactivity in the environment - Air: radon-222 - Part 11: Test method for soil gas with sampling at depth (ISO 11665-11:2016); German version EN ISO 11665-11:2019
环境中放射性的测量-空气:氡-222-第11部分:深度取样土壤气体的试验方法(ISO 11665-11-2016);德文版EN ISO 11665-11:2019