Disposable Parallel Particle Impactors (PPIs)
These Parallel Particle Impactors (PPIs) are high performance Thoracic and Respirable PM Samplers. The patented* design has the power of 4 impactors in one small, conductive aluminium sampler, to provide the closest match to the ACGIH/ISO/CEN thoracic or respirable conventions. Disposable pre-oiled porous plastic impaction substrates reduce the negative effects that particle buildup and bounce can have on the sample accuracy, by firmly trapping larger particles. Unlike other samplers, the sampling efficiency of the PPI is not dependent on the collected particle type.
- Lightweight - weighs only 93g
- 8 L/min Respirable model provides enhanced sampling sensitivity for WEL/TWA silica and other compounds with low target concentrations. Ideal for short term task monitoring. It is referenced in MDHS 14/4.
- 4 L/min Respirable model provides higher flow option and use of intrinsically safe personal pumps.
- 2 L/min Respirable model is ideal for standard WEL/TWA sampling.
- 2 L/min Thoracic model is ideal for metal working fluids, or WEL/TWA monitoring for sulphuric acid, or any other compounds with a thoracic limit. It is referenced in MDHS 14/4.
The patented* SKC Parallel Particle Impactor (PPI) samplers contain four small impactors in the inlet section of the device. Each impactor features a unique 50% cut-point to target a specific one-quarter segment of the ISO/CEN curve resulting in a precise fit along the entire curve. A sample pump pulls air through the inlet nozzle of each impactor in the inlet plate. Particles larger than each impactor’s 50% cut-point are scrubbed and retained on the porous oiled impaction substrate, while smaller particles continue to the standard 37 mm collection filter for analysis.
Disposable PPIs are available pre-assembled with:
- Filter, filter supports, and substrates for chemical analysis (preloaded models)
or
- Substrates only - add your own filter and filter support for gravimetric analysis
* US Patent No. 7,073,402
Reusable aluminium Parallel Particle Impactors (PPIs) are also available.
| Flow Rate | 2 L/min respirable or thoracic, 4 or 8 L/min respirable | |
| Sample Media | 37 mm PVC filter, pore size 5.0 µm, 37mm PTFE Filter, pore size 2.0 µm (NIOSH 5524) or 37 mm MCE Filter, pore size 0.8 µm | |
| Sample Media - Preloaded Filter |
225-3841, 37 mm PVC filter pore size 5.0 µm with cellulose support |
|
| Body material | Conductive ABS plastic | |
| Impaction Substrate | Four 3/8 inch diameter pre-oiled porous plastic discs (already assembled) | |
| Analysis | Gravimetric or chemical | |
| Tubing | 1/4 inch (6.25mm) ID | |
| Dimensions | Height: (clip to exhaust): 10.8 cm (4.25in) Diameter: 4.6 cm (1.8 in) Depth: 3.0 cm (1.2 in) |
|
| Weight | 31.2 g (1.1 oz) |
| Description | Pack Size | Part Number | |
| Preloaded Disposable Thoracic PPI (blue), 2 L/min, plastic, one time use. Preloaded with four porous plastic disc impaction substrates, one 37 mm, 0.8 µm MCE collection filter, and one cellulose support. OSHA ID 113 for sulphuric acid. |
Each | 225-3861 |  |
| Preloaded Disposable Thoracic PPI (blue), 2 L/min, plastic, one time use. Preloaded with four porous plastic disc impaction substrates, one 37 mm, Quartz collection filter, and one cellulose support. NIOSH 7908 for sulphuric acid. |
Each | 225-3862 | |
| Preloaded Disposable Respirable PPI (gold), 2 L/min, plastic, one time use. Preloaded with four porous plastic disc impaction substrates, one 37 mm, 5.0 µm PVC collection filter, and one cellulose support. |
Each | 225-3851 |  |
| Preloaded Disposable Respirable PPI (red), 8 L/min, plastic, one time use. Preloaded with four porous plastic disc impaction substrates, one 37 mm, 5.0 µm PVC collection filter, and one cellulose support. |
Each | 225-3841 |  |
| Preloaded Disposable Respirable PPI (orange), 4 L/min, plastic, one time use. Preloaded with four porous plastic disc impaction substrates, one 37 mm, 5.0 µm PVC collection filter, and one cellulose support. |
Each | 225-3871 |  |
| Description | Pack Size | Part Number | |
|
Preweighed Preloaded Disposable Respirable PPI (gold), 2 L/min, plastic, one time use. Preweighed to 5 decimal places. |
Each | 225-3851-PW | |
|
Preweighed Preloaded Disposable Respirable PPI (red), 8 L/min, plastic, one time use. Preweighed to 5 decimal places. |
Each | 225-3841-PW | |
|
Preweighed Preloaded Disposable Respirable PPI (orange), 4 L/min, plastic, one time use. Preweighed to 5 decimal places. |
Each | 225-3871-PW | |
| Description | Pack Size | Part Number | Part Number |
| Disposable Thoracic PPI (blue), 2 L/min, plastic, one time use (requires filters and supports) |
Each | 225-386 | |
| Disposable Respirable PPI (gold), 2 L/min, plastic, one time use (requires filters and supports) |
Each 25 |
225-385 225-385A |
|
| Disposable Respirable PPI (red), 8 L/min, plastic, one time use (requires filters and supports) |
Each | 225-384 | |
| Disposable Respirable PPI (orange), 4 L/min, plastic, one time use (requires filters and supports) |
Each | 225-387 | |
| Description | Pack Size | Part Number | |
| PVC Filters, 37 mm, 5.0 µm pore size | 100 | 225-5-37 |  |
| PTFE Filters* , 37 mm, 2.0 µm pore size for metalworking fluids (NIOSH 5524) | 100 | 225-17-33 | |
| MCE Filters, 37 mm, 0.8 µm pore size | 100 | 225-1939 | |
| Support Pads, cellulose, 37 mm | 100 | 225-27 |  |
| Stainless Steel Screen, 37 mm, wide mesh | Each | 225-26 |  |
| Calibration Adaptor for Disposable PPIs | Each | 225-389 |  |
| Forceps with non-serrated flat tips for delicate membranes | Each | 225-8371 |  |
* Back pressure on PTFE filters can vary within the same lot.
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Preloaded Disposable PPI |
Non-Preloaded Disposable PPI |