Model Andersen Non-Viable Cascade Impactors

Key Features

  • Gravimetric analysis allows reference method precision
  • Particle bounce and wall losses virtually eliminated
  • High mass collection and high flow rate
  • Gravimetric or chemical sample analysis
  • Stainless-steel, glass, and filter substrates available

Description

The combination of a constant flow rate and successively smaller diameter orifices increase the velocity of sample air as it cascades through the sampler, resulting in the impaction of progressively smaller particles in the succeeding stages. Operating at 28.3 liters per minute (LPM), the particle fraction ranges from 0.4 to >10.0 mirometers in diameter. Particles too small to be impacted on the last collection plate are collected in the backup filter. Optional accessories allow for additional research operations at 60 and 90 PLM.

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