Volumetric and Gravimetric Proving Inspections on Behalf of Measurement Canada.

As part of the Measurement Canada Registration Program, all of our calibration equipment is certified and traceable to NRC standards. Our Prover fleet continues to expand to meet growing industry demands.

Industries Served


  • Petroleum, Commercial and Retail
  • LPG (Liquefied Petroleum Gas)
  • Aviation
  • Industrial Applications
  • Chemical Applications
  • Agricultural Applications
  • Mining
  • Food Processing
  • Government / Municipalities
  • Transit Operations


Accu-Flo tests, repairs, and certifies a wide variety of products and equipment that requires correct and legal measurements. If you do not see prover or certification equipment relevant to your system, please contact us for further information.

Volumetric Provers
2 x 3000 Litre Mobile Unit
  • Load Racks

  • Bulk Plants

  • High Speed Bulk Trucks

1 x 1500 Litre Mobile Unit
  • Load Racks

  • Bulk Plants

  • High Speed Bulk Trucks

4 x 500 Litre Mobile Units
  • Bulk Trucks

  • Dock Meters

2 x 230 Litre Mobile Unit
  • Bulk Trucks

  • Dock Meters

  • High Speed Refuellers

4 x 20 Litre Measures
  • Retail Dispensers

  • DEF Dispensers

Water Meter Test Bench – Stationary
  • All types of Water Meters

  • Batch System Testing

Gravimetric Provers

3 x Mobile LPG Provers
  • Bulk Truck Meters

  • Bulk Truck Loading Facilities

  • Retail LPG Dispensers

  • Card Lock Refuellers

1 x Stationary LPG Prover
  • Bulk Truck Meters (Prior to Installation)

  • Retail LPG Dispensers (Prior to Installation)

  • Bulk LPG Dispensers (Prior to Installation)

  • Card Lock Refuellers (Prior to Installation)

2 x Mobile Platform Scales
  • Lube Oil Meters

  • Chemical Applications

  • Miscellaneous

Certified Standards
  • Electronic Thermometers

  • LPG Hydrometers

  • Test Weights

  • Pycnometers

Repair & Re-Test

Mobile Liquid Volumetric Provers

Accu-Flo currently has a fleet of seven mobile units including four Measurement Canada certified Volumetric Provers and three Gravimetric LPG provers. We travel more than combined 500,000 km a year servicing bulk transport units, cardlocks, retail dispensers and bulk loading racks. Our mobile provers cover an expansive area from Northern Ontario to Vancouver Island, BC as well as the far North regions of Nunavut, Northwest Territories and the Yukon.