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Operating Instructions
863 Valley View Road, Eighty Four, PA 15330 USA
Tel: 724-941-9701 • www.skcinc.com
Sioutas Cascade Impactor
†
The patented
personal Sioutas Cascade Impactor consists of four impaction stages
and an after-fi lter that allows the separation and collection of airborne particles in
®
fi ve size ranges. The Sioutas Cascade Impactor is used with the Leland Legacy
Sample Pump (SKC Cat. No. 100-3002) or any other pump capable of maintaining
a constant fl ow rate of 9 L/min. Particles above each cut-point are collected on a
25-mm PTFE fi lter in the appropriate stage. Particles below the 0.25 μm cut-point
of the last stage are collected on a 37-mm PTFE after-fi lter. The Sioutas Cascade
Impactor clips onto a worker's collar in the breathing zone and the pump clips onto
the worker's belt. For area sampling, the impactor can be att ached to a tripod or
clipped in an appropriate location. The Sioutas Impactor may be used for ambient
outdoor sampling with special provisions. See Sampling. Size-fractionated samples
can be analyzed gravimetrically, chemically, and microscopically.
† U.S. Patent No. 6,786,105
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Summary of Contents for SKC Sioutas Cascade Impactor
- Page 1 ® fi ve size ranges. The Sioutas Cascade Impactor is used with the Leland Legacy Sample Pump (SKC Cat. No. 100-3002) or any other pump capable of maintaining a constant fl...
- Page 2 After-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. 225-3708) Certification: EPA-ETV has verified the Sioutas Impactor performance with the Leland Legacy sample pump. See htt p://archive.epa.gov/nrmrl/archive-etv/ web/pdf/vs_skcsioutas.pdf for details.
- Page 3 Disassembly The Sioutas Impactor will arrive already assembled with the exception of the fi lter retainers, which are included, but packaged separately. Disassemble it to clean (see Cleaning), to load with filters (see Assembly), or to remove filters after sampling. Disassemble the impactor from inlet to outlet.
- Page 4 Repeat Steps 3 and 4 for stages B-D. Remove O-ring from outlet plate. See Figure 2. Figure 2. Outlet plate, exploded view Remove compression ring from outlet plate. See Figure 2. Note: Use forceps to carefully insert or remove impaction substrate, after-fi lter, and fi...
- Page 5 Align marks Filter Nest a collector plate in top of outlet Use forceps to place a 25-mm fi lter in plate. Align the marks. collector plate. Align “D” with Filter mark retainer Filter Use forceps to place a fi lter retainer on Place accelerator plate D (O-ring top of the fi...
- Page 6 Calibration Calibrate pump fl ow rate with the Sioutas Impactor and representative after-fi lter in place. It is not necessary to pre or postweigh representative media. You may also calibrate with representative fi lters in all the stages if desired, however, it is not necessary for proper calibration.
- Page 7 • As the particle load on the after-fi lter increases during sampling, the pressure drop will also increase. Therefore, use a compensating sample pump such as the Leland Legacy (SKC Cat. No. 100-3002). • Back pressure on PTFE fi lters can vary within the same lot.
- Page 8 Cleaning Clean the Sioutas Impactor in between samples to remove residual particles. Disassemble all stages (see Disassembly) and O-rings. To remove O-rings, align the head of a small fl at-head screwdriver with the notch in the inner wall of the plate. Gently lift the O-ring up and out.
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Page 9: Ordering Information
SKC Limited Warranty and Return Policy SKC products are subject to the SKC Limited Warranty and Return Policy, which provides SKC’s sole liability and the buyer’s exclusive remedy. To view the complete SKC Limited Warranty and Return Policy, go to htt p://www.skcinc.com/warranty. - Page 12 www.skcinc.com Form 40086 Rev 1902...
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