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Ash Free Filter Paper – Lab qualitative filter paper – Great Wall Detail:
Lab qualitative filter paper Specifications

CP1002 qualitative filter papers are made of 100 % linter cotton, manufactured by modern paper-making technology. This kind of filter paper is generally used for qualitative analysis and solid-liquid separation.
|
Grade
|
Speed
|
Particle retention(μm)
|
Flow rate①s
|
Thickness (mm)
|
Basis weight (g/m2)
|
Wet Burst② mm H2O
|
Ash< %
|
|
1
|
Medium
|
11
|
40-50
|
0.18
|
87
|
260
|
0.15
|
|
2
|
Medium
|
8
|
55-60
|
0.21
|
103
|
290
|
0.15
|
|
3
|
Medium-slow
|
6
|
80-90
|
0.38
|
187
|
350
|
0.15
|
|
4
|
Very fast
|
20-25
|
15-20
|
0.21
|
97
|
260
|
0.15
|
|
5
|
Very slow
|
2.5
|
250-300
|
0.19
|
99
|
350
|
0.15
|
|
6
|
slow
|
3
|
90-100
|
0.18
|
102
|
350
|
0.15
|
① Filtration speed is the time for filtering 10ml(23±1℃)distillated water through 10cm2 filter paper.
② Wet Bursting Strength is measured by wet bursting strength instrument.
Ordering information
Sheets and rolls with custom-made size are available.
|
Grade
|
Size(cm)
|
Packing
|
|
1,2,3,4,5,6
|
60×60 46X57
|
60×60
|
|
Φ7、Φ9、Φ11、Φ12.5、Φ15、Φ18、Φ18.5、Φ24
|
Sheet :100sheets/pack, 10packs/CTN
|
| |
Circle :100circles/pack, 50packs/CTN
|
Lab qualitative filter paper Applications
1. Qualitative analysis pretreatment;
2. Filtration of precipitates, such as ferric hydroxide, lead sulphate, calcium carbonate;
3.Seed testing and soil analysis.

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