Welcome to American Fluoroseal Corporation (Afc) - The Leader in providing Specialed FEP Storage Containers
Welcome to American Fluoroseal Corporation (Afc) - The Leader in providing Specialed FEP Storage Containers
   

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About Permeability

Permeability of AFC Standard Bags to N2, O2, CO2, H2O

 °C 

.005 FEP  Film
N2 P cc/m2/d

.005 FEP  Film 
O2P cc/m2/d

.005 FEP  Film
CO2P cc/m2/d

.005 FEP  Film
H2O P cc/m2/d

40

1280

3460

7700

0.807

37

1155

3079

7101

0.628

25

746

2195

5246

0.227

5

315

1075

3063

0.027

3

288

980

2850

0.021

1

263

916

2685

 

-25

73

187

565

 

-78

3.5

7.5

 

 

-80

2.8

5.9

 

 

-125

0.019

0.091

 

 

You will note that the permeability changes greatly with change in temperature.

To calculate the amount of gas that will enter or exit your particular bag at 37°C use this formula:

Permeability Chart Computation

(O2) @37°C  -  0.3079 x cm= Oxygen  Permeability

(CO2) @37°C  -  0.7101 x cm= Carbon Dioxide Permeability

(N2) @37°C  -  0.1155 x cm= Nitrogen Permeability

(H2O) @37°C  -  0.0000628 x cm= Water Permeability