RTCA Services

Testing Services


Short Term Tests and Long Term Tests

The quickest way to test is with Short-term Tests*. Short-term tests are conducted for 2 days to 90 days, depending on the device. Generally, a short-term test is 2 to 7 days.

*If you are involved in a real estate transaction, or want results quickly, a short-term test is recommended.

RTCA® Offers the Following Short Term Tests

Charcoal Canisters
recommended for real estate
RTCA®'s Charcoal Canisters contain small quantities of activated charcoal. Radon is adsorbed onto the charcoal and then measured by counting with a sodium iodide detector. ORDER NOW

CLICK HERE to view the Andreas George paper on charcoal presented at the 2000 International Radon Symposium sponsored by the American Association of Radon Scientists and Technologists.

Continuous Radon Monitors
recommended for real estate
RTCA®'s Continuous Monitors - Electronic devices which require operation by trained professionals. Find an Inspector in Your Area or Consult Your Professional Tester.

CLICK HERE for more information and pricing on the Continuous Radon Monitor contained in our catalog sheet.

CLICK HERE for a sample results report for continuous radon monitor.

CLICK HERE to view the paper presented at the AARST Conference about the E-Smart Radon Monitoring System

Long-term tests remain in your home for 90 days, up to one year. A long-term test will give you a reading that is more likely to tell you your home's year round average radon level.

RTCA® Offers the Following Long Term Tests

Electret Ion Detectors
RTCA®'s Electret Ion Detectors contain an electrostatically charged Teflon disk. The ions produced by the alpha decay of radon inside the detector strike the disk, reducing the surface voltage. The voltage reduction is measured in the laboratory and the radon concentration is then calculated. ORDER NOW

Radon in Water

Testing For Radon in Water

The EPA recommends testing for radon in water if the water supply is from a private well or from a public water system that mixes well water with surface water.

RTCA® provides Radon in Water Test Kits that are simple and inexpensive. Each kit is accompanied with easy to follow directions and includes analysis and next-day results. Analysis is done in a liquid scintillation counter. ORDER NOW


Professional Radon Test Stand
Enhance your professional image and meet all EPA Real Estate Protocols with
RTCA®'s Adjustable Radon Test Stand! The adaptable tray design accommodates two passive detectors or most continuous monitors. The stand has an adjustable height, 17" to 42", and is compact. ORDER NOW

Tamper Evident Labels
Provide your clients with a higher degree of confidence by using Tamper Evident Labels with all active and passive radon measurement devices.
The use of Tamper Evident Labels assure that the EPA protocols for closed house conditions during the test period have been observed. Use the Labels to secure windows, non-primary doors (i.e.bulk head doors, utility doors, etc.) and ventilation equipment switches, such as fresh air control of air conditioners. The labels are designed to adhere to clean surfaces. If disturbed, the word "VOID" will appear on the surface where the label has been removed, as well as on the label itself. The imprint can be easily removed with the adhesive pad provided with the labels. ORDER NOW

Door Hangers
Brightly colored Door Hangers
alert that a radon test is in progress and should not be disturbed. The door hangers list EPA protocols for short-term tests and are another tool to help ensure proper testing conditions are maintained.
Dimensions: 8" x 3.75". ORDER NOW

For Professionals

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