SKC Preloaded Disposable Parallel Particle Impactor Operating Instructions Manual page 6

Sampling
SKC tests indicate that a particulate mass of up to 6.8 mg on the four impaction
substrates would not affect PPI performance. This amount is equivalent to sampling
for 6 hours at 4 L/min in environments where respirable mass concentration is
4.76 mg/m and equals 50% of total dust. However, labs have reported to SKC that
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they prefer no more than 2 mg on the fi lter for analytical reasons. Therefore, SKC
recommends that you work with your lab to determine optimum sample times for
your unique sampling conditions.
1. As per good industrial hygiene practice, replace representative sampler used
for calibration with a new, unused preloaded sampler.
2. Record sample start time on label.
3. Clip Disposable PPI onto a worker's collar or lapel in the breathing zone or in
the area to be sampled.
4. Clip sample pump at the worker's waist or close to the Disposable PPI.
5. Use fl exible tubing to att ach the Disposable PPI exhaust
to the inlet of the sample pump.
6. Turn on pump and record pertinent sample data.
7. After the desired sample time has elapsed, turn off the
pump and unclip sampler from sampling location.
8. Apply Post-use label to inlet plate to seal the
sampler.
9. Record sample stop time on label on the bott om
of sampler.
10. Disconnect sampler from pump and reinstall
protective end cap on the exhaust.
11. Reinstate calibration train with representative
Disposable PPI and verify fl ow rate. See Calibration.
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