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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
MN 640 we

Very fast filtration, ashless, for fast filtration of very coarse precitpitates.
All data at a glance... 

MN 640 w
≡ black ribbon, No. 41

Fast filtration, ashless, for fast filtration of coarse precipitates.
All data at a glance... 

MN 640 m
≡ white ribbon, No. 43

Medium fast filtration, ashless, standard filter for many applications.
All data at a glance... 

MN 640 md   
≡ red ribbon, No .40

Medium fast filtration, ashless, for example for magnesium-ammonium-phosphate and zinc sulfide.
All data at a glance... 

MN 640 dd
≡ green ribbon, No. 44

Slow filtration, ashless, for filtration of fine precipitates.
All data at a glance... 

MN 640 d
≡ blue ribbon, No. 42

Slow filtration, ashless, for filtration of very fine precipitates.
All data at a glance... 

MN 640 de   

Very slow filtration for extremely fine precipitates.
All data at a glance... 

 

 
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