EMC Testing Labs in Tennessee – Accredited Facilities

AMS Corporation

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AMS Corporation is an A2LA-accredited (ISO/IEC 17025, Certificate No. 3483.01) nuclear industry EMC testing and instrumentation and control (I&C) testing organization headquartered at 9119 Cross Park Drive in Knoxville, Tennessee. Founded in 1977 as a spinoff of Oak Ridge National Laboratory (ORNL) and the University of Tennessee, AMS operates a 100,000+ sq ft technology campus staffed by approximately 100 engineers and scientists, the majority of whom are iNARTE-certified EMC Engineers and Specialists. The company's quality assurance program complies with 10 CFR 50 Appendix B and 10 CFR Part 21, and is audited by the Nuclear Procurement Issues Corporation (NUPIC) every two to three years. AMS serves nuclear facilities in 26 countries and maintains 24/7 emergency EMC support availability. EMC services center on the qualification and compatibility of digital I&C equipment and wireless technologies in nuclear power plants, where electromagnetic interference with safety-critical systems presents strict regulatory requirements. Laboratory and on-site field EMC qualification testing is performed to NRC Regulatory Guide 1.180 and EPRI TR-102323 using both MIL-STD and IEC methodologies. Specific capabilities include EMC qualification testing of digital I&C equipment, EMI/RFI troubleshooting and problem resolution, EMI/RFI site surveys of plant electromagnetic environments, wireless technology implementation support, EMC design reviews for equipment upgrades, cable testing, and EMC mitigation and redesign support during qualification. The AMS campus includes MIL-STD-461 testing facilities and a state-of-the-art EMC laboratory, and the company also operates temperature sensor response time and precision calibration laboratories, a materials testing laboratory, and environmental chambers supporting nuclear-grade qualification testing.

Global Testing Laboratories

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Global Testing Laboratories is a fully accredited third-party testing laboratory headquartered in Knoxville, Tennessee. Established in 2004, GTL provides comprehensive regulatory compliance testing across four main disciplines: EMC, product safety, environmental, and transportation testing. Their 20,000-square-foot facility includes an enclosed, climate-controlled 10-meter open-air test site and an outdoor 60-meter diameter test pad, giving them the capability to handle most sizes of industrial and commercial equipment. GTL is one of the more heavily accredited labs in the industry, holding NVLAP accreditation to ISO/IEC 17025 with a scope covering EMC and telecommunications test methods across FCC, CISPR, EN, IEC, AS/NZS, CNS, ANSI, and KN standards. They are also recognized as a Conformity Assessment Body by ACMA, BSMI, and RRA, and are a VCCI support member. On the safety side, GTL is a TÜV SÜD CARAT-certified testing laboratory, which allows them to perform unwitnessed testing — eliminating delays from waiting for TÜV presence on-site. They also partner with TÜV SÜD America and UL to help clients obtain NRTL marks. Their transportation testing arm is ISTA-accredited with Commercial classification, covering a wide range of ISTA protocols as well as MIL-STD, SAE, and NMFTA Item 180 requirements. GTL positions itself as a one-stop shop for manufacturers needing EMC, environmental, safety, and transportation testing handled under one roof, with an emphasis on fast turnaround and hands-on engineering support throughout the process.