We are accredited by the National Institute of Standards and Technology National Voluntary Laboratory Accreditation Program (NVLAP Lab Code: 105000-0) in 14 measurement disciplines. View the scope.

Our capabilities include the following.

Complex Geometric Measurements

As the sole supplier of NVLAP-accredited (NVLAP Lab Code: 105000-0) gear metrology services, Oak Ridge’s Center for Complex Geometric Measurements provides NIST-traceable calibrations with a quantified statement of uncertainty of less than 36 millionths of an inch (0.9 micron).

  • Gear artifacts — involute, helix, index, flank, pin, and master gears
  • High precision and affordable services, with a six-week turnaround time

Dimensional Metrology

  • Complex three-dimensional geometric measurements performed in the work volume of a CMM with a quantified statement of uncertainty
  • Diameter and roundness standards
  • Gear masters
  • One-dimensional length artifacts (e.g., end standards, step gages, Moore bars, Koba bars, Inora SRS bars, ball bars, and gage blocks)
  • Surface texture standards
  • Two-dimensional artifacts (e.g., grid plates and line scales, hole plates and ball plates)

Physical and Electrical Metrology

  • Frequency/time
  • Mass, with ultra-precision Class 1 calibrations from 1 milligram to 30 kilograms
  • Pressure
  • Temperature

ORMC provides NIST-traceable measurements in the following areas:

  • Angular measurements including angle blocks, rotary tables, and autocollimators
  • Direct and alternating voltage and current, radio frequency power, resistance, ratio, oscilloscopes, and phase
  • Gas flow, gas analysis, moisture/humidity, and density/volume
  • Hardness, force, torque, and acceleration
  • Ionizing optical, optical pyrometry, heating, ventilation, and air conditioning
  • Vacuum and standard leaks