Personal Modular Impactors (PMIs)

Highly Efficient Personal PM10, PM2.5, or PM Coarse Sampling

• Models available for PM10, PM2.5, or PM Coarse _(10-2.5) sampling



• Use with any constant flow pump at 3 L/min



• Closely follows PM2.5 or PM10 as defined by EPA



• Compact and lightweight — only 2.5 ounces (71 grams)
  • Ideal for personal or micro-environmental sampling
    
    
• Convenient modular design for easy operation
  • Removable filter cassette for easy media changes
  • Disposable ready-to-use pre-oiled impaction disks reduce particle bounce for high collection efficiency — no cleaning or greasing
  • Convenient clip for mounting sampler in the breathing zone
    
    
• PMI 10 model is easily converted to measure PM Coarse with accessory ring



• PMI 10 model is suitable for ACGIH® thoracic TLVs®
  • Including sulfuric acid as thoracic particulate matter
    

SKC Personal Modular Impactors Operating Instructions (PDF)

SKC Personal Modular Impactors Spec. Sheet (PDF)

SKC Personal Modular Impactors Performance Profile (PDF)

Modular Impactors Poster Presentation (PDF)

 

SKC Personal Modular Impactors
The patented (U.S. Patent No. 7,334,453) SKC Personal Modular Impactors (PMIs) are designed for the highly efficient collection of PM10, PM2.5, or PM Coarse _(10-2.5). The samplers are easy to use with a removable filter cassette and pre-oiled impaction disk. The 25-mm pre-oiled impaction disk mounts directly on top of the filter cassette and reduces particle bounce for high collection efficiency. A 25-mm filter may be used as an alternate impaction substrate for optional chemical analysis of particles. The PMI Coarse model includes a second filter cassette to allow collection of particles < 10 µm, but larger than 2.5 µm.

PMI Performance
The graph below demonstrates the high sampling efficiency of the PMI PM2.5 and PM10 Samplers when compared to the EPA PM2.5 and PM10 curves. For more information, see the Modular Impactors Poster Presentation (PDF).

Collection Efficiency of PMI 2.5 and PMI 10 Samplers
(Click to enlarge)

 

Performance Profile

Flow Rate	3 L/min for all models
50% Cut-point	10 µm or 2.5 µm (model dependant)
Material	Inlet: Precision-tooled aluminum
	Exhaust: PVC
	Filter Cassette: Delrin® with stainless steel support screen
Final Collection Filter	37-mm filter, select filter material based on application
Impaction Substrate	25-mm pre-oiled, disposable porous plastic disk to reduce particle bounce or 25-mm filter for optional chemical analysis
Analyses	Gravimetric and chemical
Dimensions (without clip)	Diameter: 2 in (5.1 cm)
	Height: 1 in (2.6 cm)
	Weight: 2.5 oz (70.9 gm)

 

Partner AirChek® XR5000 Pump with PMI

The PMI Samplers may be used with any constant flow sample pump capable of maintaining a constant 3 L/min flow rate. However, partnering a PMI Sampler with an AirChek XR5000 Sample Pump creates a highly efficient sampling system. The compact, lightweight XR5000 pump is ideal for personal sampling.

Ordering information

Description			Cat. No.
Personal Modular Impactor (PMI) includes impactor and filter cassette with support screen, requires impaction substrate and collection media sold separately; see below	PM2.5		225-352
	PM10		225-350
	PM Coarse, includes 2 filter cassettes		225-351
Recommended Collection Filters
Quartz Filters, 37 mm, Tissuquartz™, 432 µm thick, pk/25			225-1822
PTFE Filters, 37 mm, 2.0-µm pore size, PTFE with PMP support ring, pk/50 Back pressure on PTFE filters can vary within the same lot.			225-1709
PTFE Filters, 37 mm, 1.0-µm pore size, PTFE with laminated PTFE support, pk/50 Back pressure on PTFE filters can vary within the same lot.			225-2705
Impaction Substrate
Pre-oiled Porous Plastic Disks, 25 mm, ready to use, disposable, required for sampling, limited shelf-life A 25-mm filter may be used as an alternative impaction substrate for optional chemical analysis.	pk/25		225-355
	pk/50		225-355A
Accessories
PM Coarse Ring includes filter cassette, adapts a PMI 10 to a PMI Coarse			225-3512
Replacement Filter Cassette			225-356
PMI Cassette Opener			225-357
Forceps, stainless steel, non-serrated flat tips			225-8371
Filter-Keepers, 37 mm, for filter transport, pk/100			225-8303
Filter-Keepers, 37 mm, for filter transport, pk/10			225-8303A
PMI Calibration Adapter			225-358
Replacement PMI Exhaust O-ring, ea			P32001

SKC Personal Modular Impactors Operating Instructions (PDF)

SKC Personal Modular Impactors Spec. Sheet (PDF)

SKC Personal Modular Impactors Performance Profile (PDF)

Modular Impactors Poster Presentation (PDF)

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This page was last modified July 15, 2010