Thermo Scientific™

Two-Stage Viable Andersen Cascade Impactor

 Related applications:
Environmental
Collect 95 to 100% of the viable particles above 0.8 microns in an aerosol on a variety of bacteriological agar using the Thermo Scientific™ Two-Stage Viable Andersen Cascade Impactor. This multi-orifice impactor can be used whenever a size distribution is not required and only respirable-nonrespirable segregation or total counts are needed.

Error loading your content!

  Catalog number Price ({{currency}}) Availability Qty
{{product.sku}}
also known as {{product.formattedSku}} 
{{product.availability.message}} Add To Cart

{{addItemToList.successMessage}} {{addItemToList.listName}}


Back to top

Description

A reusable aluminum sampler separates viable particles into two size ranges with the 50% cut-off diameter of Stage 1 at 8.0 microns for spherical particles of unit density.

Key Features:

  • The impactor is constructed with two aluminum stages that are held together with three dowel pins and three PTFE caps. Each impactor stage contains multiple precision-drilled orifices
  • Collection plates are prepared by aseptically pipetting 20mL of sterile bacteriological agar into each of the two glass Petri dishes supplied with instrument
  • Air to be sampled enters the jet orifices of Stage I and cascades through the jet orifices of Stage II with a higher orifice velocity (as compared to Stage I); smaller particles are inertially impacted on the agar plate more in Stage II than in Stage I
  • Viable particles are retained on the agar plates, and the exhaust air is carried through the outlet in the base of the instrument to the vacuum source
  • The unit requires a flow rate of exactly 28.3L/min (1cfm) for maximum collection efficiency

Requires:

Vacuum pump (see specifications).

User services

Order status 
Review your order status.

Service offerings
Overview of all services including support plan options, repairs and calibrations, spare parts and technical training.

Factory Depot 
Request an RMA number and send your instrument to our factory for repair.



Documents

Manuals & protocols