Filter Paper, Lab Supplies, Whatman Filter Paper

Filter Paper, Lab Supplies, Whatman Filter Paper

Filter papers come in a broad range of glass fiber, qualitative and quantitative types for all needs. The success of any laboratory filtration depends upon the correct choice of filter paper. Lab Depot offers a wide range of grades to meet all of your particular filtration needs, with the optimum combination of two important features: retention and flow rate.



Sub Categories
<b><font color=red>Best Value</b></font> Qualitative
Best Value Qualitative		<b><font color=red>Best Value</b></font> Glass Fiber Filters
Best Value Glass Fiber Filters		<b><font color=red>Best Value</b></font> Quantitative
Best Value Quantitative		General Purpose
General Purpose
Glass Fiber Filters
Glass Fiber Filters		Qualitative
Qualitative		Quantitative
Quantitative


Filter Paper

To assist you in choosing the correct filter products, we offer the following guidelines:

General Purpose
For general laboratory work and analytical operations involving filtration of chemicals, gelatinous, and coarse precipitates.
 
Retention (µm) Flow Rate Porosity Grade No.
11 Medium Medium 1
8 Medium Medium 2
5 Medium Medium 413

Glass Fiber Filters
For filtration of precipitated proteins, cells, cell debris; for dissolved and suspended solids testing in sanitary water analysis procedures; and monitoring specific pollutants.

Retention (µm) Flow Rate Porosity Grade No.
2.7 Fast Coarse GF/D
1.6 Fast Fine GF/A
1.5 Fast Fine 934-AH
1.3 Fast Fine 693
1.2 Fast Fine GF/C
1.2 Fast Fine 696
1.0 Medium-Fast Fine GF/B
0.7 Medium Fine 151
.7 Medium Fine GF/F

Qualitative Papers
For general laboratory work and analytical operations involving filtration of chemicals, gelatinous, and coarse precipitates.
 

Retention (µm) Flow Rate Porosity Grade No.
40 Fast Coarse 417
25 Fast Coarse 415
25 Fast Coarse 315*
20-25 Fast Coarse 4
6 Medium Medium 3
5 Medium Medium 413
5 Medium Medium Fine 313*
2.5 Slow Fine 5
1 Slow Fine 410

Quantitative Papers
Suitable for general quantitative analysis. These grades are useful for both coarse and fine as well as gelatinous precipitates.

Retention (µm) Flow Rate Porosity Grade No.
20-25 Fast Coarse 41
20-25 Fast Coarse 54
20-25 Fast Coarse 541
16 Fast Medium/Coarse 43
10 Medium Fast Medium 454
5-10 Medium Flow Medium Fine 474
8 Medium Medium 40
3 Slow Fine 44
2.5 Slow Fine 42
1 Slow Fine 494