Ahlstrom Munksjö 6420-1850 18.50cm Qualitative Medium Speed Filter Paper, 2.0um Retention has finer particle retention than Grade 601 but with slightly slower filtration speed. Grade 642 also has higher absorption than Grade 601. It is used in general laboratory applications to retain particles above 2μm in size. Grade 642 is also found in agricultural and environmental laboratories for plant growth trials, soil testing, and air analysis for monitoring specific contaminants and in the filtration of organic and sulfide precipitates. 100/pack.
Size (cm): 18.50