Solid Sorbent Tube Descriptions

 

The photo links on this page will open larger images new browser windows. Close the new windows to return to this page.

 

Tube:
The standard tube has two sections containing 100 and 50 milligrams of charcoal respectively, separated by a foam plug.

Use:
Sampling solvent vapors. This tube is used with low flow pumps. The 100 milligram, or longer portion of the tube, should be used at the sampling end, with the 50 milligram, or shorter portion, used as an indicator of sample breakthrough.

 

 

Tube:
The large activated charcoal tubes have two sections of charcoal containing 400 and 200 milligrams, respectively.

Use:
Sampling solvent vapors. The longer front portion of the tube is used for sampling, and the shorter portion of the tube is used for backup.

 

 

Tube:
Silica gel tubes come in a variety of sizes.

Use:
Collection of some alcohols.

 

 

 

Tube:
Contains carulite.

Use:
Collection of inorganic mercury vapor.

 

 

 

Tube:
HMP coated XAD-2

Use:
Collection of formaldehyde, acetaldehyde and acrolein. It may also be used for phosgene.

 

 

Tube:
Pre-washed silica gel

Use:
Collection of mineral acids and some organic acids.

   Warning: Never use regular silica gel for acid mist sampling.

 

 

Tube:
Mixed-bed solid sorbent

Use:
Used for the collection of a wide variety of volatile organic solvents at parts per billion (ppb) levels for indoor air studies.

Note: They are sent out from the lab just before sampling as they must be cleaned just before use.

 

 

Tube:
OSHA versatile sampler

Use:
Used for the collection of several different types of solid sorbents, pesticides, PCBs, and other chemicals.

 

 

Other Tubes

 

Many other types of tubes are available upon request. These include chromosorb, XAD and many specialty treated tubes. Please check the sampling guide for appropriate use of these specialty tubes.

The laboratory may not be able to provide the requested analysis when an inappropriate tube type has been used. Contact us at 800-446-0403 whenever you have any questions as to which tube to use.