Parallel Particle Impactor (PPI), Disposable, Respirable, Plastic, 8 L/min

Overview

Parallel Particle Impactor (PPI), plastic, single-use disposable, four-stage, for respirable sampling at 8 L/min. The PPI provides the closest match to the entire ACGIH/CEN/ISO respirable curve compared to any other sampler available. Pre-assembled with four porous plastic disc impaction substrates. Requires a 37-mm filter and support purchased separately, ea.

For more information on the Parallel Particle Impactor contact your local Air-Met office.

Features

Collection efficiency precisely matches ISO/CEN 7708:1995 size-selection criteria
- Respirable PPI Samplers meet specifications in the 2013 OSHA NPRM for silica

Single use means no cleaning or two-way shipping costs!

Selection of flow rates available to meet specific applications
- 8 L/min respirable PPI: Enhances sensitivity (for short-term and/or low concentration sampling) using high flow pumps; ideal for proposed lower OSHA PEL for silica
- 4 L/min respirable PPI: Enhances sensitivity and can be used with personal pumps
- 2 L/min respirable PPI: Standard TWA sampling
- 2 L/min thoracic PPI: Metalworking fluids (NIOSH Method 5524) and thoracic TLV-TWA compounds such as sulfuric acid and cotton dust

Patented disposable PPIs are available pre-assembled with:
- Filter and pre-oiled substrates for chemical analysis
- Pre-oiled substrates only – add your own weighed filter for gravimetric analysis

Reusable aluminum PPIs are available

Performance published in Journal of Physics and submitted to OSHA docket on silica

Specifications

Sampling Rate	2 L/min respirable or thoracic, 4 L/min respirable, or 8 L/min respirable
Sample Pump	Universal or AirChek for 2 and 4 L/min, Leland Legacy for 8 L/min
Sample Time	Dependent on method used
Sample Media	37-mm, 5.0-µm PVC filter or 37-mm, 2.0-µm PTFE filter (NIOSH 5524) or 37-mm, 0.8-µm MCE filter

	Back pressure on PTFE filters can vary within the same lot.
Tubing	1/4-inch ID
Impaction Substrate	Four 3/8-in diameter pre-oiled porous plastic discs (preloaded in all Disposable PPIs)
Analysis	Gravimetric or chemical
Dimensions	Height: (clip to exhaust): 4.25 in (10.8 cm)
	Diameter: 1.8 in (4.6 cm)
	Depth: 1.2 in (3.0 cm)
Weight	Disposable: 1.1 oz (31.2 gm)
Shelf-life	One year from date of manufacture