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
Slow filtration, ashless, for filtration of fine precipitates.

Filter Papers – Filtrierpapiere
Grade / Sorte                                            MN 640 dd
Weight / Gewicht [g/m2]                            70
Thickness / Dicke [mm]                              0,16
Filtration speed / Filtriergeschwindigkeit       100
[s]
Surface / Oberfläche                                   smooth / glatt
Ash content / Aschegehalt (%)                     < 0,01
Applications and properties /                      Ashless, slow filtration, for
all fine precipitates /
Anwendungen und Eigenschaften                 Aschefrei, langsam
filtrierend, für alle feinen
Niederschläge