Professional Testing’s accreditation and approvals for EMC testing, Explosive Atmosphere, Reliability testing, and Electrical Product Safety testing:


Professional Testing is accredited with the National Voluntary Laboratory Accreditation Program (NVLAP Lab Code 200062-0). NVLAP is an accreditation provided by the National Institute of Standards and Technology, a part of the U.S. Department of Commerce.

NVLAP was established in 1976 by the US government to provide a uniform way of ensuring the competence of testing laboratories and to provide an infrastructure of consistent testing standards for international compliance. The rules of NVLAP procedures are listed in 15 CFR Part 285. NVLAP operates an accreditation system that is compliant with ISO/IEC 17011: “Conformity assessment – general requirements for accreditation bodies accrediting conformity assessment bodies”. ISO/IEC 17011 requires that the competence of applicant laboratories be assessed by the accreditation body against all of the requirements of ISO/IEC 17025- general requirements for the competence of testing and calibration laboratories.

Professional Testing is listed as a NVLAP ILAC recognized lab. This ensures that our accreditation is covered by the scope of the NVLAP ILAC MRA signatory status.


A full list of NVLAP accreditation for PTI can be found on the NVLAP site at: PTI NVLAP Accreditations



Other EMC Related Accreditations


Electrical Product Safety- IECEE  CBTL

The product categories and standards for which PTI are approved can be found on the IECEE website HERE


Explosive Atmospheres- IECEx  ExTL

Professional Testing is an audited and approved testing laboratory under the national certification body: TÜV SÜD Product Service GmbH


 Information about IECEx can be found HERE



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