carbon disulphide (solvent used to extract VOCs from charcoal or OVM PSDs)
high volume air sampling device (typically 40 scfm)
airborne particulate matter less than 10 or 2.5 micrometers in aerodynamic diameter, respectively
zero grade (nitrogen or air) used as a carrier or FID supply gas in gas chromatography or in other chemical procedures.
vibrating orifice aerosol generator, a device used to generate airborne salt or dioctylthalate particles of micron size
Wright Dust Feed Generator, a device used to generated airborne particulate matter