With over 35 years of experience, our technicians have provided precise calibration, instrument repair, and metrology database management to a diverse range of industries across the Parkersburg area.

Located in Gaithersburg, MD, our calibration laboratory—accredited to ISO/IEC 17025:2017, ANSI Z540-1, and Z540.3 standards—adheres to strict quality protocols. We perform all calibrations and repairs in line with manufacturer specifications to ensure your measurement tools remain reliable, repeatable, and audit-ready. Each calibration is accompanied by a certificate that confirms compliance with the rigorous standards set by the National Institute of Standards and Technology (NIST).

Parkersburg, WV is an industrial and commercial center at the confluence of the Ohio and Little Kanawha rivers, with a significant presence in chemical manufacturing, plastics, and polymer production. Process industries in this region depend on accurately calibrated pressure, temperature, and flow instruments to maintain safe operations, meet environmental reporting requirements, and comply with EPA and OSHA regulations.

Tra-Cal supports industrial clients with ISO/IEC 17025 accredited calibration for pressure gauges, thermometers, flow meters, and analytical instruments. We provide NIST-traceable calibration certificates for in-lab service at our Gaithersburg, MD facility, with on-site options available for large or process-integrated equipment that cannot be removed from service.