Leak Test Services

American Portable Nuclear Gauge Association

All radioactive licenses issued by regulatory agencies have a requirement for you to perform a leak or wipe test on your gauges. This test typically takes less than 5 minutes per gauge and it usually involves wiping a small piece of filter paper across areas near the locations of the sources in the gauge. Although the likelihood is very remote, these tests are designed to pick up any external contamination that may have made its way outside of the double encapsulated seals that hold the radioactive material.

The frequency of taking a leak test is determined by what is stated on your radioactive materials license. Manufacturers typically recommend the frequency of leaks tests on their devices – some recommend every year, others every 6 months. But regulatory agencies can require every 6 months regardless of what the manufacturer suggests. If the manufacturer recommends once a year and your licensing agency allows once a year then by all means elect once a year tests. But, you must adhere to what your license says.

Make sure to perform leak tests on time and file the results.

Lack of leak tests documents and/or gaps in timely leak test frequency are among the highest noted infractions during inspections. If you do forget to perform a leak test on time you are better off to note the infraction and explain what actions you have taken to ensure such oversights will not occur in the future. Don’t try and hide the oversight.

Make sure to keep a copy of the results in your documentation file and another copy with the gauge. If your gauge is found to be “leaking”, typically a finding in excess of 0.005 microcuries you will be instructed to pull the gauge out of service for further analyses.

Most manufacturers and some service providers sell leak test kits. The price of the kit should also include the analysis. The company should be timely (less than 2 weeks) in receiving and returning your results analysis documents to you. There is no such thing as “bells & whistles” when it comes to a leak test kit or leak test analysis – go with the company that is timely and offers the best price. Leak test kit/analysis costs from $13 – $30 per test. You should also expect a service provider to send you a reminder approximately one month before the next leak test is due.

Independent Leak Test Providers:

Atlantic Supply
4187 S.W. 34th Street
Orlando, FL 32811
800-569-8950, 407-246-6516, F: 407-246-6518
atlanticsupply.com 

Radiation Safety & Control Services, Inc.
91 Portsmouth Avenue
Stratham, NH 03885
603-778-2871
http://radsafety.com/analytical-services.php

Dade Moeller Analytical and Calibration Services
704 S. Illinois Avenue, Suite C-101
Oak Ridge, TN 37830
865-481-6050 x3406
lab@moellerinc.com
http://www.moellerinc.com/rad-radioactive-sealed-source-leak-testing.php 

Laboratory Technical Services, LLC
2016 N Palafox St
Pensacola, FL 32501-2145
850-433-8661
labts.com

Northeast Technical Services
75 Aileron Ct, Suite 4
Westminster, MD 21157
866-868-2382
http://www.netsnukes.com/

Pacific Nuclear Technology
2525 West 10th St.
Antioch, CA 94509-9111
800-706-3395  925-706-8300
http://www.pacificnucleartechnology.com

Aguinaga Technical Services
1924-C Calumet Drive
Sheboygan, WI 53081
920-803-8789
www.atsnuc.com

Occupational Services, Inc.
6397 Nancy Ridge Drive
San Diego, CA 92121
858-558-6736
http://www.occserv.com/

R. M. Wester and Associates
215 Indacom
St Peters, MO 63376
636-928-9628
rmwester.com 

RSSI
6312 W Oakton St
Morton Grove, IL 60053
www.rssi.us

Stan A. Huber Consultants, Inc
200 N. Cedar Road
New Lenox, IL 60451
800-383-0468
www.sahci.com

Quantum Technical Services, Inc.
15502 Old Galveston Road, Suite 711
Webster, TX 77598
877-461-7200
www.quantumtec.net

MJW Technical Services
243 Root St, Suite 100
Olean, NY 14760
716-372-5300
mjwts.com

RAM Services Inc
510 County Road V
Two Rivers, WI 54241
920-686-3889
ramservicesinc.com

Manufacturer Leak Test Contacts:

CPN (Instro Tek)
5052 Commercial Circle
Concord, Ca 94520
925-363-9770
instrotek.com

Humboldt
551-D Pylon Drive
Raleigh, NC 27606
919-833-3190
humboldtmfg.com

InstroTek (Now owns CPN)
5908 Triangle Drive
Raleigh, NC 27617
919-875-8371
instrotek.com

Seaman
7315 South First Street
Oak Creek, WI 53154
414-762-5100
seamannuclear.com

If your company provides leak test services and would like to be listed on this page please contact APNGA at https://www.apnga.com/ or 240-888-6426.