(Draft) Package Leak Test Standard

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Many piping systems are installed on rotating machiney or equipment packages. An air leak test or Bubble test is typically performed afterward to ensure proper installation.

Below is an explanation of the pressure and procedure used for the leak test.


  • Process: Category M & D (Refer ASME B31.3. 300.2 Definitions)
  • Test Pressure: ASME B31.3, 345.8 - Sensitive Leak Test
    (15 psi or 25% of the design pressure)
  • Test Procedure: ASME Section V, Article 10, Mandatory Appendix I

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