DIN 25423 Supplement 1 E:1999 空气中放射性监测的采样程序 气溶胶颗粒和气态碘化合物沉积损失计算说明以及气溶胶颗粒浓度变化计算说明 草案
Draft Document - Sampling procedures for the monitoring of radioactivity in air - Instructions for the calculation of depositional losses of aerosol particles and gaseous iodine compounds and for calculation of changes of aerosol particle concentration