Cleaning, Tech tips – SKC 225-370 Sioutas Cascade Impactor User Manual
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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. Wash parts in water with detergent or in
isopropyl alcohol. Parts may also be cleaned in an ultrasonic bath. Rinse and dry
all parts thoroughly with compressed air if available. Otherwise, air dry in a clean
environment. Inspect all accelerator plates by holding them up to a light to ensure
that none of the impaction slits are clogged. Impaction slits may be cleaned with
compressed air.
Caution: Do NOT use any mechanical object to clear an obstruction from a
clogged impaction slit.
Tech Tips
• Additional collector plates can be loaded and ready to use when sampling
at multiple sites. See Accessories for ordering replacement collector plates.
• Handle
all
fi lter material and fi lter retainers with forceps. See Accessories for
ordering forceps.
•
The Sioutas Impactor may be used for ambient outdoor sampling with the
following provisions:
1. Wind velocity is < 5 mph
2. The impactor plates are not overloaded. See NUATRC Report No. 2
for
information on maximum particle load per stage.