Glass Midget Impingers
For Collecting Airborne Hazards into Liquids

About Midget Impingers
Impingers are Pyrex^® glass bubble tubes designed for the collection of airborne hazards into a liquid medium. When using a personal air sampler, a known volume of air bubbles is pumped through the glass tube that contains a liquid specified in the method. The liquid is then analyzed to determine airborne concentrations. 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.

Laboratory-quality Glass Midget Impingers
SKC impingers have graduations that are accurate to within ± 0.5 ml for each increment. This helps reduce volumetric measurements required in the field and in the laboratory, while also saving time and money.

Ordering Information

Description		Cat. No.
Standard Midget, standard nozzle, 25-ml capacity with graduations in 5-ml increments. The nozzle is precisely placed to ensure proper collection. The two pieces are joined by a 24/40 ground-glass joint.		225-36-1
Special Midget, 25 ml, fritted nozzle, modified standard midget with a special fritted nozzle tip (170 to 220-µm glass frit) to increase contact between the air sample and the liquid. Many NIOSH and OSHA procedures call for this type of bubbler impinger.		225-36-2
Spill-resistant Midget, 25-ml, standard nozzle, constructed to prevent liquid from spilling should it be accidentally tipped or turned upside down. A special outlet sidearm extends midway down, with sufficient capacity above to hold all of the liquid.		225-36-4
Spill-resistant Midget, 25-ml, fritted nozzle (170 to 220-µm glass frit), constructed to prevent liquid from spilling should it be accidentally tipped or turned upside down. A special outlet sidearm extends midway down, with sufficient capacity above to hold all of the liquid.		225-36-5

Glass impinger and glass trap in holder mounted on Universal PCXR8 sample pump

Use a trap with impingers to prevent impinger liquids from being drawn into the sample pump. Solid sorbents may be added to the trap to protect the pump chamber from exposure to vapors when using a volatile liquid.

SKC fritted impingers are classified as very coarse with a 170 to 220-µm glass frit.

Glass Impinger Sampling Accessories

Description		Cat. No.
Trap for Midget Impingers, glass trap for area sampling, can be used with or without sorbent		225-22
In-line Plastic Traps with silica gel/activated charcoal sorbent to remove vapors; readily handles volatile organic liquids that might be used for collection, pk/3		225-22-01
Replacement Trap Sorbent, 200 grams, silica gel/activated charcoal mix to remove both organic and inorganic vapors		225-22-02
Holster Designed specifically for the midget impinger. Made of thick vinyl fabric with a clip for attaching directly to a worker's collar or shirt front. The holster enables sampling to be done in the breathing zone. Suitable for glass impingers only		225-20
Impinger Holders Stainless steel for attaching to high-volume air sample pumps. Single holder accommodates either impinger or impinger trap. Double holder accommodates either two impingers for series operation or impinger and trap.		Cat. No.
Single impinger Holder, suitable for glass impingers only For 1 impinger or 1 trap		225-20-01
Double Impinger Holder, suitable for glass impingers only For 2 impingers or 1 impinger and 1 trap		225-20-02

This page was last modified March 31, 2010

About SKC

Ordering Information

Glass Midget Impingers For Collecting Airborne Hazards into Liquids

Glass Midget Impingers
For Collecting Airborne Hazards into Liquids