TestOp® – Pressure Test Certification

Due to industry-wide demand, the application that RCP utilizes to validate pressure tests for their clients onsite is now available to license. The application allows Operators to plan, certify and document pressure tests using a web-based platform with optional offline data upload capabilities. Save time and money by confirming the pressure test is acceptable and meets Code requirements BEFORE taking the pipe segment “off test,” saving you time and money.

See it in action!

Sign up for one of our monthly demos or request a private demo for your company.

Schedule a private demo
Register for training


All pressure tests conducted per the Code of Federal Regulations require verifying the absence of leaks.

§192.503: “No person may operate a new segment of pipeline or return to service a segment of pipeline that has been relocated or replaced, until— Each potentially hazardous leak has been located and eliminated.”

195.302(a): “no operator may operate a pipeline unless it has been pressure tested under this subpart without leakage. In addition, no operator may return to service a segment of pipeline that has been replaced, relocated, or otherwise changed until it has been pressure tested under this subpart without leakage.”

TestOp per API 1110

Per industry standard API 1110, the absence of leaks shall be proven through engineering analysis.

“The application of engineering principles and analytical evaluation of all test data is necessary to determine the acceptability of a pressure test.

Volume differences between the start and the end of the test period should be determined. The volume differences are attributable to four components as follows.

  • Injections and withdrawals.
  • Changes in calculated volume due to temperature changes.
  • Dissolution of air or gases into the test medium.
  • Test medium released through a relief valve.

Changes in volume due to temperature and pressure should be determined by the use of appropriate calculations. A set of calculations that provide volume corrections to account for temperature and pressure changes that occurred during the test period (start and stop) should be developed or adopted. The effect of temperature varies with the pipe diameter, D/t ratio (outside pipe diameter/wall thickness), volume of residual air, and the test liquid.

Volume losses above the uncertainty of measurement accuracy should be explained. Unexplained losses indicate an unknown leak or leaks in the test section.”

TestOp calculates the mass of test medium at the start of the test and compares it with the mass of test medium at the end of the test period. If the comparison indicates a loss and that loss can be attributed to a change in temperature or volume, the absence of leaks is then proven. TestOp can also calculate the % of air entrapped to determine if any pressure loss can be attributed to the dissolution of air. The output is a clear indication of whether the pressure test passed or failed the leak acceptance criteria. 

Key Features

  • TestOp® Capabilities
    1. DESIGN pressure tests in accordance with Code and company requirements.
    2. PLAN pressure tests with the help of the MAOP/MOP calculator.
    3. DETERMINE pipe yielding, air entrapment and pipe length discrepancies by generating a P/V plot.
    4. CALCULATE the loss or gain of the test medium and compare to the allowable loss per API 1110.
    5. REVIEW the test data as it’s input to ensure its accuracy.
    6. CERTIFY that the test is leak-free and the desired MOP/MAOP is met.
    7. DOCUMENT the test with TestOp’s comprehensive auto-generated reports.
  • Pressure Test Regulations
    1. 49 CFR 192 Subpart J Test Requirements
      • Gas transmission
      • Gas distribution
      • Regulated gas gathering
    2. 49 CFR 195 Subpart E Pressure Testing
    3. ASME B31.3 Process Piping, Section 345 Testing
  • Allowable Test Mediums
    • Water
    • Nitrogen
    • Air
    • Natural gas

Brochure Downloads

Key Contacts

Jessica Foley

Vice President

(713) 655-8080