This impinger was designed for the sampling of small air volumes with a low jet velocity.
Features & Benefits
Manufactured from borosilicate glass 3.3 conforming to USP Type I and ASTM E438, Type I, Class A requirements
Similar design to the Greenburg-Smith impinger, except for its smaller size
Requires only a 12" head of water
Orifice at the bottom of the impinger is 1 mm, passing 0.09-0.11 CFM of air at 12" H2O vacuum
Pieces are interchangeable, maintaining nozzle centering and clearance to the bottom inside surface