Ashless filter papers

For quantitative analysis and filtration with low blank values 
Ashless filter papers are particularly suited for quantitative routine  analysis and are manufactured from refined pulp and linters. They are acid-washed and have an extremely low ash content of 0.01%. The amount of a-cellulose is about 95%.

Ashless filter paper grades
Very fast filtration, ashless, for fast filtration of very coarse precitpitates.

Filter Papers – Filtrierpapiere
Grade / Sorte                                           MN 640 we
Weight / Gewicht [g/m2]                           85
Thickness / Dicke [mm]                             0,22
Filtration speed / Filtriergeschwindigkeit
[s]                                                           5
Surface / Oberfläche                                 smooth / glatt
Ash content / Aschegehalt (%)                   < 0,01
Average retention capacity /
mittleres Rückhaltevermögen
[μm]                                                        12 – 25
Applications and properties /                      Ashless, fast filtration, for
coarse particles /