These Parallel Particle Impactors (PPIs) are high performance, reusable Thoracic and Respirable PM Samplers, are similar to traditional 37 mm filter cassettes in that they collect respirable dust on a standard 37-mm filter. However, 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 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 7708/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.

* US Patent No. 7,073,402

Single-use disposable Parallel Particle Impactors (PPIs) are also available.

The SKC Plastic Cyclone is a lightweight conductive plastic unit that holds a collection filter in a reusable cassette during sampling. The cyclone is designed to sample respirable dust as per MDHS 14/4 and the BS EN 481 criteria. When attached to a suitable sample pump respirable particles collect on the filter and larger particles fall into the grit pot, at the base, to be discarded. It is designed for a 50% cut-point of 4.0 µm at 3.0 L/min. The static-dissipating cyclone features a snap-together cassette system and is used at 3.0 L/min flow with a 25 mm or 37 mm cyclone cassette. It includes a grit pot. The SKC Plastic Cyclone 25mm (225-69) is similar to the the Higgins-Dewell design cyclone (2.2 L/min) but operates at 3.0 L/min.

The SKC Plastic Cyclone has been assessed against the respirable convention, described in BS EN 481 by the Health & Safety Laboratory, UK. A copy of the Certificate of Conformity is included with each cyclone.

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.

SKC’s Disposable Personal Impactors (DPIs) deliver precise, size-selective particulate sampling for PM10 or PM2.5, while eliminating the time and maintenance associated with reusable impactors. Each preloaded, preweighed DPI Sampler contains pre-oiled impaction substrate to reduce particle bounce for high collection efficiency and a 37-mm filter for sampling collection. DPIs requires no assembly, greasing, or cleaning.

• Ready to use
  • Preloaded and preweighed to save time
  • No greasing or assembly required.
• Contain pre-oiled impaction discs
  
  • Reduce particle bounce for high collection efficiency
  • No contamination risk
• Available for PM10 or PM2.5
• Disposable sampler, eliminating the need for cleaning
  
  • Saves labour costs for labs
• Use with any constant flow pump at 3 L/min
• Compact and lightweight plastic for worker comfort