Performance profi le – SKC 225-370 Sioutas Cascade Impactor User Manual
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Performance Profi le
Flow Rate: 9
L/min
50% Cut-point at 9 L/min: Stage A
2.5 μm
Stage
B
1.0
μm
Stage C
0.50 μm
Stage D
0.25 μm
Recommended
37-mm, 2.0-μm PTFE fi lter* with PMP support ring
Aft er-fi lter Type:
(SKC Cat. No. 225-1709)
Recommended Filter
for Stages:
25-mm, 0.5-μm PTFE fi lter with laminated PTFE
support (SKC Cat. No. 225-2708)
Certification:
EPA-ETV has verified the Sioutas Impactor
performance with the Leland Legacy sample pump.
for details.
Wind Velocity:
< 5 mph
Aft er-fi lter Operating
Temperature (maximum): 464 F (240 C) based on PMP support ring
Maximum Particle Load: Varies per stage. See NUATRC Report No. 2 at
Impactor Material:
Inlet/oulet plates and stages are anodized
autoclavable aluminum; O-rings are Buna-N
(Nitrile);
fi lter retainers are acrylic; compression
ring is PTFE
Inlet and Outlet
Inlet: 3/8-in OD, 1/4-in ID
Diameters:
Outlet: 3/8-in OD, 1/4-in ID
Dimensions:
3.4 x 2.2 in (8.6 x 5.6 cm)
Weight:
5.6 oz (159 gm)
Tubing: 3/8-inch
ID
* Back pressure on PTFE fi lters can vary within the same lot.