NRSB Accredited Chambers
NRSB Approved Secondary Chambers
All chambers listed below are qualified to expose passive devices (methods AC, LS, ES, EL, AT). All chambers that have instrument models listed are qualified to calibrate those instrument models. Click on a chamber name to reveal more information.
Bowser-Morner, Inc.
4514 Taylorsville Road
Dayton, OH 45424
937-236-8805
Certification Number: CHM0001 & CHM003
Proficiency Test Procedure (pdf) »
Qualified to Calibrate Instrument Models
31804-femto-Tech CRM-510
31802-femto-Tech R210F Radon Monitor
31803-femto-Tech RS410F
32302-Pylon AB-5 Portable Radiation Monitor
31807-Sun Nuclear 1027
31821-Sun Nuclear 1028
31822-Sun Nuclear 1029
31806-Honeywell A9000A
TCS Industries Inc.
4326 Crestview Road
Harrisburg, PA 17112
717-657-7032
Certification Number: CHM0002
NRSB Approved Tertiary Chambers
All chambers listed below are qualified to expose passive devices (methods AC, LS, ES, EL, AT). All chambers that have instrument models listed are qualified to calibrate those instrument models. Click on a chamber name to reveal more information.
Durridge Company
524 Boston Road
Billerica, MA 01821
781-687-9556
Certification Number: TRC0003
Qualified to Calibrate Instrument Model
31810-DurridgeCo/Niton Rad 7
Professional Electronic Radon Detector
Gemmill Associates
PO Box 413
Paupack, PA 18451
800-846-9893
Certification Number: TRC7002
Qualified to Calibrate Instrument Model
31807 – Sun Nuclear-1023/1026/1027
At Ease Digital Data Logger
Rad Elec, Inc.
5714-C Industry Lane
Frederick, MD 21704
301-694-0011
Certification Number: TRC6002
Qualified to Calibrate Instrument Model
31820 – Rad Elec Radon Scout CRM
31823 – Rad Elec Recon CRM
Radalink, Inc.
5599 Peachtree Road
Atlanta, GA 30341
800-295-4655
Certification Number: TRC11001
Qualified to Calibrate Instrument Model
31815 – Radalink Series 6000 Telemonitor CRM
Radon Testing Corp. of America
2 Hayes Street
Elmsford, NY 10523
914-345-3380
Certification Number: TRC5001
Qualified to Calibrate Instrument Models
31817-RTCA-MR-2000-P CRM
31818-RTCA-MR-2000-S CRM
Sun Nuclear Corporation
425-A Pineda Court
Melbourne, FL 32940
321-259-6862
Certification Number: TRC6001
Qualified to Calibrate Instrument Model
31807-Sun Nuclear 1027 At Ease Digital Data Logger
31821-Sun Nuclear 1028 Continuous Radon Monitor
31822-Sun Nuclear 1029 Continuous Radon Monitor