SKC 225-370 Sioutas Cascade Impactor - Manual (Page 4)

4
Media and Impactor Preparation
Equilibrate and pre-weigh the fi lters in a clean environment according to appropriate
procedures. Record the weight as the pre-sample weight.
Clean the Sioutas Impactor in between samples to remove any residual particles.
See Cleaning.
Assembly
In a clean environment, assemble the Sioutas Impactor from outlet to inlet as
follows:
Caution: Handle all fi lter material with forceps.
Caution: Ensure that the screen and spacer ring (Figure 2) are in place before
inserting fi lter. The screen prevents the fi lter from restricting the outlet.
5 6
7
Repeat Steps 3 and 4 for stages B-D. Remove O-ring from outlet plate
(see Figure 2).
Remove compression ring from outlet
plate (see Figure 2).
1
Remove O-ring and compression ring
from outlet plate (see Disassembly,
Steps 6 and 7 and Figure 2).
Insert 37-mm aft er-fi lter in outlet plate.
Replace compression ring and O-ring.
Figure 2. Outlet plate, exploded view
O-ring
Compression
ring
Spacer ring
Screen Outlet
plate
Note: Use forceps to carefully insert or remove impaction substrate, aft er-fi lter,
and fi lter retainers.