skip to main content

SciTech ConnectSciTech Connect

Title: Pressure Change Measurement Leak Testing Errors

A pressure change test is a common leak testing method used in construction and Non-Destructive Examination (NDE). The test is known as being a fast, simple, and easy to apply evaluation method. While this method may be fairly quick to conduct and require simple instrumentation, the engineering behind this type of test is more complex than is apparent on the surface. This paper intends to discuss some of the more common errors made during the application of a pressure change test and give the test engineer insight into how to correctly compensate for these factors. The principals discussed here apply to ideal gases such as air or other monoatomic or diatomic gasses; however these same principals can be applied to polyatomic gasses or liquid flow rate with altered formula specific to those types of tests using the same methodology.
 [1] ;  [1]
  1. ORNL
Publication Date:
OSTI Identifier:
DOE Contract Number:
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Evaluation; Journal Volume: 72; Journal Issue: 5
Research Org:
Oak Ridge National Laboratory (ORNL)
Sponsoring Org:
Country of Publication:
United States
Non-Destructive Examination; Pressure Change Measurement Test; Leak Test