Leak Recalibration and Repair Services

VTI's calibrations are NIST-traceable and conform to Mil Std 45662A, ANSI/NCSL-Z-540-1-1994-Std and are Accredited to the International Standard ISO/IEC 17025-1999 (which supercedes the ISO/IEC Guide 25). Calibration Laboratories that comply with ISO/IEC-17025 also operate in accordance with ISO 9001 and 9002.

VTI's Calibration Laboratory is Accredited by the American Association for Laboratory Accreditation - A2LA

Services Offered:

VTI offers recalibration and repair services for all brands of calibrated leaks, all gases and all leak rates.

  • Primary NIST-traceable calibrations for leak standards of all gasses (Certified)
  • NIST-traceable comparison calibrations of helium leaks (Certified)
  • Helium leak calibrations w/o certification
  • NIST-traceable calibrations of sniffer-type helium leaks, and VTI's Refrigerant Leak Standards and GE/Yokagawa's LS-20 Refrigerant Leaks
  • Refill of calibrated leak standards for all gases to restore the original leak rate
  • Replacement of broken glass element in leaks
  • Repair of both permeation and capillary type leaks with replacement parts as required
  • Calibration to customer's special QA specifications and "ISO" requirements

You are welcome to audit our facility. Lists of recent audits and direct comparisons to calibrations by the US National Institute of Standards & Technology (NIST) are also available.