22 Nov

Impinger

Prior to working in laboratory sales, I had no idea what or ever heard of a device called a Pinger.  The images reflected in this blog remind me of components one might find in a Moonshine Still.

All kidding aside, the Pinger is an instrument used in the analysis of air particles, found in a gas.   Basically, the process consists of blowing the particles  through a jet onto a wetted plate where they can then be counted.  Typically made of glass, the instrument is to designed for the collection of airborne hazards and then transfered into a liquid medium.  The liquid is then analyzed to determine the airborne concentrations.  Recovery rate of particles average between 85 and 90 percent.   An impinger may be mounted on the side of an air sample pump or put into a holster and placed near a worker’s breathing zone.  An example of an application for collecting particles is the Chromatographic Source test method for Formaldehyde.

The components of the Impinger consist of a tube/bottle (the image on the left is a hex base tube), and a stopper.  Connections are made with ball joints or plain tubulations.  Average bottle capacities range from 5-30ml.

StephenG