The Applied Technical Services (ATS) Family of Companies performs meter proving services — a physical test of a flow meter under actual operating conditions. Regulations require meter provers to have an accurate, NIST-traceable volume, as technicians use these instruments in applications that require great precision, such as flow meter certification, custody transfer, and leak detection. NIST-traceable meter proving is key to accurate petroleum measurement.
Onsite Meter Proving Services at Applied Technical Services
ATS is one of the nation’s leading meter-proving providers, offering a wide range of services to address clients’ measurement accuracy needs across the petroleum industry. We specialize in flow meter proving and are the preferred provider for some of the most well-established businesses working in the aviation, transportation fuels, and petrochemical sectors. Common products compatible with our provers include gasoline, diesel, ethanol, propane, butane, and crude oil. Some of our most popular meter proving services include:
- High Flow Proving (up to 13,000 BPH)
- Truck Loading Rack
- Pipeline Meter Proving
- Butane Injection
- Aviation Refueling Terminals
- Ball Prover Certifications (using the Master Meter Method)
In-House Proving Services
In addition to the services offered onsite, ATS offers a variety of in-house flow meter and prover services at our flow laboratory, including:
- Coriolis Meter Proving
- Ultrasonic Meter Proving
- Positive Displacement and Turbine Meter Proving
- Prover and Meter Services
- Meter Repair and Renewal
- Small Volume Prover Repair and Renewal
- Meter and Small Volume Prover Troubleshooting
Applied Technical Services: We Take a Closer Look
Founded in 1967, Applied Technical Services is proud to be one of the most well-established testing, inspection, certification, and compliance providers in the United States. We understand the importance of keeping your business operations running smoothly, offering expedited service options for hundreds of our testing and analysis services. Get in touch with the proven calibration experts today by calling 1 (888) 287-5227 or submit the webform on this page to request a free quote or more information on meter proving services.

