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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.

Thoracic PPI 2L/min
Respirable PPI 2L/min
Respirable PPI 4L/min
Respirable PPI 8L/min
PPI
  • 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.

Specifications
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
225-3851,
225-3871:
225-3861:   37 mm MCE Filter pore size 0.8 µm with cellulose support
225-3862:   37 mm Quartz Filter pore size 0.8 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)
Preloaded Disposable PPIs
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   225-3861 Preloaded Disposable Thoracic Parallel Particle Impactor (PPI) (blue), 2 L/min flow rate 
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   225-3862 Preloaded Disposable Thoracic Parallel Particle Impactor (PPI) (blue), 2 L/min flow rate 
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   225-3851 Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (gold), 2 L/min flow rate 
Preloaded Disposable Respirable PPI (gold), 2 L/min, plastic, one time use.

Preloaded with four porous plastic disc impaction substrates, one 37 mm, 1.0 µm PVC collection filter, and no support.
Each 225-3852   225-3851 Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (gold), 2 L/min flow rate 
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   225-3841 Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (red), 8 L/min flow rate 
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   225-3871 Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (orange), 4 L/min flow rate 
Preweighed Preloaded Disposable PPIs
Description Pack Size Part Number  

Preweighed 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.

Preweighed to 5 decimal places.

Each 225-3851-PW   225-3851-PW PreweighedPreloaded Disposable Respirable Parallel Particle Impactor (PPI) (gold), 2 L/min flow rate 

Preweighed 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.

Preweighed to 5 decimal places.

Each 225-3841-PW   225-3841-PW Preweighed Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (red), 8 L/min flow rate 

Preweighed 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.

Preweighed to 5 decimal places.

Each 225-3871-PW   225-3871-PW Preweighed Preloaded Disposable Respirable Parallel Particle Impactor (PPI) (orange), 4 L/min flow rate 
Disposable PPIs
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   225-386 Disposable Thoracic Parallel Particle Impactor (PPI) (blue), 2 L/min flow rate 
Disposable Respirable PPI (gold), 2 L/min, plastic, one time use
(requires filters and supports)
Each
25
225-385
225-385A
  225-385 Disposable Respirable Parallel Particle Impactor (PPI) (gold), 2 L/min flow rate 
Disposable Respirable PPI (red), 8 L/min, plastic, one time use
(requires filters and supports)
Each 225-384   225-384 Disposable Respirable Parallel Particle Impactor (PPI) (red), 8 L/min flow rate 
Disposable Respirable PPI (orange), 4 L/min, plastic, one time use
(requires filters and supports)
Each 225-387   225-387 Disposable Respirable Parallel Particle Impactor (PPI) (orange), 4 L/min flow rate 
Accessories
Description Pack Size Part Number  
PVC Filters, 37 mm, 5.0 µm pore size 100 225-5-37   225-5-37 PVC Filters, diameter 37 mm, pore size 5.0 µm 
PTFE Filters*   , 37 mm, 2.0 µm pore size for metalworking fluids (NIOSH 5524) 100 225-17-33   225-27-07 PTFE Filters, diameter 37mm, pore size 2.0 µm, for metalworking fluids (NIOSH 5524) 
MCE Filters, 37 mm, 0.8 µm pore size 100 225-1939   225-5 Mixed Cellulose Ester (MCE) Filters, diameter 37 mm, pore size 0.8 µm 
Support Pads, cellulose, 37 mm 100 225-27  225-27 Cellulose Support Pads, 37 mm 
Stainless Steel Screen, 37 mm, wide mesh Each 225-26   225-26 Stainless Steel Screen, diameter 37mm, wide mesh 
Calibration Adaptor for Disposable PPIs Each 225-389   225-389 Calibration Adaptor for Disposable Parallel Particle Impactors (PPIs) 
Forceps with non-serrated flat tips for delicate membranes Each 225-8371   225-8371 Forceps with non-serrated flat tips for handling delicate membranes 

* Back pressure on PTFE filters can vary within the same lot.

PVC Filters, 37 mm, 5.0 µm pore size

225-5-37

MCE Filters, 37 mm, 0.8 µm pore size

225-1939

Support Pads, cellulose, 37 mm

225-27

Stainless Steel Screen, 37 mm, wide mesh

225-26

Calibration Adaptor for Disposable PPIs

225-389

Forceps with non-serrated flat tips for delicate membranes

225-8371

Documentation
Disposable PPI Instructions    Disposable PPI Non Preloaded Instructions

Preloaded Disposable PPI
Instructions

  

Non-Preloaded Disposable PPI
Instructions