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Ashless filter paper

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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%.

Characterization:

MN 640 we

Very fast filtration, ashless, for fast filtration of very coarse precitpitates.

MN 640 w
≡ black ribbon, No. 41

Fast filtration, ashless, for fast filtration of coarse precipitates.

MN 640 m
≡ white ribbon, No. 43

Medium fast filtration, ashless, standard filter for many applications.
 

MN 640 md
≡ red ribbon, No .40

Medium fast filtration, ashless, for example for magnesium-ammonium-phosphate and zinc sulfide.
 

MN 640 dd
≡ green ribbon, No. 44

Slow filtration, ashless, for filtration of fine precipitates.

MN 640 d
≡ blue ribbon, No. 42

Slow filtration, ashless, for filtration of very fine precipitates.

MN 640 de

Very slow filtration for extremely fine precipitates.


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