DIN 25423 Beiblatt 1:1999-10

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

Sampling procedures for the monitoring of radioactivity in air; instructions for the calculation of particle loss in sampling air ducts and instructions on estimates of errors due to anisokinetic sampling