UNE-EN ISO 11665-11:2019 Measurement of radioactivity in the environment - Air: radon-222 - Part 11: Test method for soil gas with sampling at depth (ISO 11665-11:2016) (Endorsed by Asociación Española de Normalización in November of 2019.)
2019UNE-EN ISO 11665-11:2019 Measurement of radioactivity in the environment - Air: radon-222 - Part 11: Test method for soil gas with sampling at depth (ISO 11665-11:2016) (Endorsed by Asociación Española de Normalización in November of 2019.)