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Metrology Lab

The Metrology Lab houses the state primary standards of mass and volume, conducts tests and certifies mass and volume standards used by our weights and measures program, industry and business.  The Laboratory is recognized by the National Institute of Standards and Technology (NIST) and is traceable to NIST through a Certificate of Measurement Traceability

NIST Office of Weights and Measures assess laboratories to NIST Handbook 143 and ISO/IEC 17025:2017.  The Utah metrology laboratory has a documented calibration program, maintains documented measurement uncertainties, uses documented NIST measurement procedures, participates in proficiency tests, and maintains a quality management system demonstrating measurement assurance for its scope of recognition.

 

Calibration Services:  

Mass and volume calibration services are available to the weights and measures community, service companies, industry, and other government agencies.  All calibration services are by appointment at the Utah Metrology Laboratory.  Fees for calibration services are $50 per hour, please contact the lab for a specific quote.

Calibration certificates issued by the laboratory include: method (procedure) used, measurement results with associated uncertainties, traceability statement to NIST, and an uncertainty statement defining how uncertainties were determined.

 

Scope of calibration services available:

  • Mass Echelon III (ASTM 5, 6, 7, NIST Class F) 30 kg to 1 mg, 1000 lb, 500 lb, 50 lb to 0.001 lb, and 4 oz to 1/32 oz.
  • Calibration of Class IIII scales (wheel load weighers) up to 20,000 lb.
  • Calibration by volume transfer for neck type provers and test measures 5 gal to 100 gal.

 

Conditions of standards to be submitted for calibration:

Weights:

    • clean and in good repair
    • stainless steel weights wiped clean 
    • interior cases for weight kit should be wiped down or vacuumed
    • cases should be sound with secure latches
    • cast iron weights should have no evidence of rust, loose paint, or debris
    • cast iron weights should be painted with a light coat of aerosol paint (silver/aluminum color for customary weights, gold color for metric weights) do not use epoxy or enamel paint. 

Volume Standards:

    • volume provers and test measures must be clean with no strong evidence of hydrocarbons
    • vessels with obvious residues will be refused
    • provers must have working valves, clean glass gauge tube, and readable scale plates.
    • mechanism for adjusting the prover must be able to move freely

 

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Contact Information:

Telephone: 801-982-2267
Email: udaf-measures@utah.gov

Location/Shipping Address:

Utah Department of Agriculture and Food
Metrology Lab
350 North Redwood Rd
Salt Lake City, UT 84116