d_sample_prep_dp_ss

CODE DESCRIPTION CATEGORY FROM_YEAR TO_YEAR
MB01 No filtration Filtration 1984  
MB02 Filtration with membrane filter 0,45 µm Filtration 1984  
MB03 Filtration with membrane filter 0,45 µm and prefiltration with glass fibre filter Filtration 1984  
MB04 Filtration with paper filters (Schwarzband) Filtration 1984  
MB99 Other filtration method Filtration 1984