Airborne Particle Counters – APC/OPC - NEBB

2007, TSI Incorporated Airborne Particle Counters APC/OPC 2007, TSI Incorporated Overview Introduction Overview Photometric technology Optical Particle Counting technology Condensation Particle Counting technology Closing remarks Questions 2007, TSI Incorporated Introduction particles large and small, are an important factor in exposure monitoring, indoor air quality, mechanical filtration and environmental air quality. Photometers, optical Particle Counters (OPCs) and condensation Particle Counters (CPCs) all measure Airborne particles in real-time. Each technology has a unique sensitivity to specific Particle characteristics such as size, size distribution, mass, density, morphology and refractive index. 2007, TSI Incorporated Terminology Coarse Particle 10 m Fine Particle m Ultrafine Particle 100nm ( m ) Generally defined as incidental emissions Nanoparticle Between 1 and 100 nm ( m ) Generally defined as engineered particles Note: terminology from ASTM Committee E56, definitions are only considerations 2007, TSI Incorporated OPC Applications Cleanroom monitoring Filter testing and leak detection Indoor air quality Air pollution studies Aerosol research Biodetection 2007, TSI Incorporated Air Quality Issues Comfort Temperature, Humidity & Draft Ventilation Air flow, CO & CO2 Dusts & particulates Mass co

Aerodynamic Diameter . Optical : Diameter . Actual physical diameter . Based on ability of a particle with 1 charge to move in an electrical field

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  Particles, Counter, Airborne, Airborne particle counters apc opc

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