Passive Thermal Desorption Tubes

The SKC Passive Thermal Desorption tubes offer an easy and accurate way to sample low-level VOCs over extended periods of time. They meet the requirements of EPA 325A regulation for fence-line monitoring of benzene at petroleum refineries with extended sample periods of 14 days. SKC supplies sampling rates for other VOCs for other applications. A weatherproof shelter is available for protecting samplers during outdoor sampling.

Diffusive Thermal Desorption Tubes

  • Meets specification of U.S. EPA 325A and UK HSE MDHS 104
  • EPA-validated sampling rates available for benzene, toluene, ethylbenzene, xylenes and many other VOCs
  • Allows for extended sample times for low-level measurements
  • Unique identification number and bar code
  • Airflow direction and cap placement arrow indicators printed on tube
  • Reusable after laboratory conditioning
  • Ideal for establishing average airborne concentrations of additional VOCs of concern

Applications include:

  • Fenceline monitoring
  • Indoor air sampling
  • Vapour intrusion studies

The tubes are standard-sized SilcoNert 2000® deactivated Stainless Steel Thermal Desorption tubes with Swagelock fittings; when they are deployed a diffusion cap is connected to one end. The diffusion cap works the same way as a front plate on a passive badge, and has a small screen inside which also keeps out particulates/insects.  SilcoNert 2000® is used as a coating to deactivate the stainless steel EPA 325 Passive TD Tubes for Benzene. This process improves corrosion resistance, inertness, and hydrophobicity for better detection limits and system performance. Tubes are deployed inside a custom-made shelter for outdoor use, which can hold up to 4 tubes at a time, and keeps them pointing diffusion-cap downwards.

Note: All tubes are conditioned and quality control tested to assure low background

Passive Sampler Selection GuidePassive Sampler Selection Guide
Hazard SearchHazard Search
What is Air Sampling?What is Air Sampling?
ContactContact

Save
Cookies user prefences
We use cookies to ensure you to get the best experience on our website. If you decline the use of cookies, this website may not function as expected.
Accept all
Decline all
Read more
Analytics
Tools used to analyze the data to measure the effectiveness of a website and to understand how it works.
Google Analytics
Accept
Decline