Sioutas Five-stage Cascade Impactor
Sioutas Five-stage Cascade Impactor Overview
Sioutas Cascade Impactor, for use with Leland Legacy air sampling pump at 9 L/min; separates and collects airborne particles in five size ranges: > 2.5 µm, 1.0 to 2.5 µm, 0.50 to 1.0 µm, 0.25 to 0.50 µm, and < 0.25 µm
The patented Sioutas Cascade Impactor separates and collects ultrafine, fine, and > 2.5-micron airborne particles (five size ranges including > 2.5, 1.0 to 2.5, 0.50 to 1.0, 0.25 to 0.50, and < 0.25 micron. Particles above each cut-point are collected on a 25-mm PTFE filter in each appropriate stage when the Sioutas Impactor is used with a 9 L/min sample pump. Particles less than the 0.25-micron cut-point of the last stage are collected on a 37-mm PTFE after-filter. The Sioutas Impactor is suitable for personal and area sampling indoors and may be used for ambient outdoor sampling with special provisions. Size-fractionated samples can be analyzed gravimetrically, chemically, and microscopically.
Applications
- Industrial hygiene studies
- Indoor Air Quality (IAQ) studies
- Air pollution studies
- Inhalation toxicology and epidemiological studies
- Aerosol research
- Pharmaceutical studies
- Outdoor ambient sampling (requires special provisions, see Operating Instructions).
Performance Profile
| Flow Rate | 9 L/min 50% cut-point of each stage 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 After-filter Type | 37-mm, 2.0-µm PTFE filter•† (Cat. No. 225-1709) |
| Recommended Collection Filter for Stages |
25-mm, 0.5-µm PTFE with laminated PTFE support |
| Wind Velocity | < 5 mph |
| Operating Temperature | Maximum operating temperature of PTFE Filters with the PMP support ring is 464 F (240 C) |
| Maximum Particle Load | Varies per stage ‡ |
| Construction Material | Stages are anodized aluminum; O-rings are Buna-N (Nitrile); filter retainers are acrylic |
| Inlet and Outlet Diameters | Inlet: 3/8-in OD and 1/4-in ID Outlet: 3/8-in OD and 1/4-in ID |
| Dimensions | 3.4 x 2.2 in (8.6 x 5.5 cm) |
| Weight | 5.6 oz (159 gm) |
| Tubing | 3/8-inch ID |
| Approvals | ETV |
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Back pressure on PTFE filters can vary within the same lot. |
| † | The maximum operating temperature for PTFE filters with PMP support ring is 464F (240C). |
| ‡ | See NUATRC Report No. 2 |
- Sampler Class : Ultrafine
- Sampler Class : Fine
- Sampler Class : PM2.5
- Cut-point : 2.5 µm, 1.0 µm, 0.50 µm, and 0.25 µm
- Flow rate : 9 L/min
- Disposable : No
- Sampler Type : Cascade Impactor
- Calibration Adaptor? : No
