Hardened filter papers for quantitative analysis
Ordering Information
References for packs of 100 filters
These wet-strengthened hard filter papers are manufactured from
refined pulp and linters and have a low ash content of < 0.01%. They are
often used for quantitative routine procedures and for analytical
gravimetric applications. Due to their high mechanical strength in wet
condition they are particularly suited for applications, where the residue
is removed from the filter e.g. with a spatula or a jet of water.
Technical data
Grade
Properties
Thickness
Filtration
speed
Basis
weight
2
MN 1640 we
we wet-strengthened, very fast filtration, smooth
0.22 mm
5 s
85 g/m
2
MN 1640 w
w wet-strengthened, fast filtration, smooth
0.2 mm
9 s
85 g/m
2
MN 1640 m
wet-strengthened, medium fast filtration, smooth
0.2 mm
27 s
85 g/m
2
MN 1640 md
wet-strengthened, medium to slow filtration, smooth
0.2 mm
55 s
85 g/m
2
MN 1640 d
wet-strengthened, slow filtration, smooth
0.17 mm
140 s
85 g/m
2
MN 1640 de
wet-strengthened, very slow filtration, smooth
0.2 mm
195 s
100 g/m
Quantitative Filter Papers
Filter flocs -
Filter aids transform difficult precipitates and
colloidal particles into a formwhich can be filtered more easily.
When slimy and strongly lyophilic, swelling precipitates are
involved, the fibres of the filter flocs prevent formation of a
continuous, impermeable layer on the filter. The resulting filter
cake remains porous and permeable, and clogging of the filter
is prevented.
Filter aid
Technical data
Ordering information
Grade
MN 101
Properties
MN 2101
MN 101
qualitative filter flocs
MN 2101 ashless, quantitative filter flocs
500 g
1000 g
500 g
1000 g
48 11 00
48 11 10
28 11 20
28 11 30
Ø
MN 1640 we
MN 1640 w MN 1640 m MN 1640 md
MN 1640 d MN 1640 de
55 mm
22 10 05
22 20 05
22 30 05
22 40 05
22 50 05
22 70 05
70 mm
22 10 07
22 20 07
22 30 07
22 40 07
22 50 07
22 70 07
90 mm
22 10 09
22 20 09
22 30 09
22 40 09
22 50 09
22 70 09
110 mm
22 10 11
22 20 11
22 30 11
22 40 11
22 50 11
22 70 11
125 mm
22 10 12
22 20 12
22 30 12
22 40 12
22 50 12
22 70 12
150 mm
22 10 15
22 20 15
22 30 15
22 40 15
22 50 15
22 70 15
185 mm
22 10 18
22 20 18
22 30 18
22 40 18
22 50 18
22 70 18
240 mm
22 10 24
22 20 24
22 30 24
22 40 24
22 50 24
22 70 24
320 mm
22 10 32
22 20 32
22 30 32
22 40 32
22 50 32
22 70 32
Filtration Products
MN
9
