Test Pressure: Pressure Decay Leak Testing – Part 2

In Part 2 of our Pressure Decay Leak Testing Series, we dive into how to properly set up a leak test and the key factors that affect accuracy and reliability. You’ll learn how to:

• Identify the main factors that influence leak testing (pressure, material type, and volume)
• Choose an appropriate test pressure without damaging the part
• Understand how air and liquid behave differently during testing
• See how temperature and molecular activity impact pressure readings
• Recognize how normal thermodynamic effects can mimic a leak
• Adjust your setup to account for these effects and ensure accurate results

This section builds the foundation for understanding the science behind pressure decay testing and how to avoid false readings during setup.