
- Category:Particle Generator and Exposure Systems
- Model:Collison Nebulizer (MRE / NSF)
- Characteristics:Vertical or horizontal discharge
Efficient aerosolization of a wide range of solutions and suspensions
Wide range of output
Equipped with safe, durable polymer container
Well equipped for handling small amounts of precious liquids
Can be operated for long periods of time
Reproducible standardized performance characteristics
Resistant to frequent decontamination procedures with chemicals or autoclaving
The Collison Nebulizer was first described in the scientific literature by Collison in 1935, according to May(1).
Over the intervening years, it has become the recognized technique for atomizing liquids and suspensions.
The original version had 3 jets and BGI Incorporated was responsible for the standardization and publication
of the 6 jet version.
Nebulization is taken to mean a refinement of two fluid atomization. In an atomizer, a gas is used to aspirate
the liquid into a (usually) sonic velocity gas jet, wherein it is sheared into droplets. In a Nebulizer, this liquid/gas
jet is impacted against a barrier (the inside of the jar) to remove the larger fraction of the droplets.
There is one basic type of Collison Nebulizer, known as the modified MRE, which is manufactured by Mesa
Labs. MRE stands for Microbiological Research Establishment, located in Porton, England.
All Collison Nebulizers of current Mesa labs manufacture have all the metal components fabricated from 316
stianless steel. All the O-rings are Buna N or silicone rubber. No flat gaskets are currently utilized. Glass jars
are either Crown Glass (standard) or Pyrex (precious fluids jar only). The 24 jet Collison jar is coated with
clear PVC.
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