Qualitative Filter Papers

For general purpose filtrations
Qualitative filter papers are manufactured from the same raw materials as the ashless grades and are particularly suited for general laboratory filtrations. The average ash content is about 0.1%, the amount of a-cellulose is about 95%.

Qualitative filter paper grades
Slow filtration, for filtration of very fine precipitates.

Filter Papers – Filtrierpapiere
Grade / Sorte                                            MN 619 eh
Weight / Gewicht [g/m2]                            85
Thickness / Dicke [mm]                              0,17
Filtration speed / Filtriergeschwindigkeit       140
[s]
Surface / Oberfläche                                   smooth / glatt
Ash content / Aschegehalt (%)                     0,1
Average retention capacity /                        2-4
mittleres Rückhaltevermögen
[μm]
Applications and properties /                       Slow filtration, for fine and
very fine precipitates /
Anwendungen und Eigenschaften                 Langsam filtrierend, für
feine und sehr feine
Niederschläge