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Gold/Mining/Energy : FASC (First American Scientific Corp)
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To: John R Resseger who wrote (696)3/4/1999 5:54:00 PM
From: Jim K.   of 972
 
John,
"I wonder how the two compare?"
I'm not sure if this is what you are asking.

The following is a list of U.S. Mesh to Microns:
U.S. Mesh Microns
4 = 4750
10 = 2000
18 = 1000
23 = 850 Using Interpolation
35 = 500
60 = 250
100 = 150
120 = 125
140 = 102
170 = 89
200 = 76
203 = 75 Using Interpolation
230 = 64
240 = 61 Using Interpolation =Desired
270 = 51
325 = 45
400 = 38
500 = 25.4
635 = 19.1
1000 = 12.7
2000 = 6.4

1 mil = 0.001 in. = 25.4 microns
1 in. = 25.4 mm = 25400 microns
1 mm = .0394 in. = 1,000 microns

Jim K.
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