Pressure Change Measurement Leak Testing Errors

Journal Article · Wed Jan 01 04:00:00 EST 2014 · Materials Evaluation

OSTI ID:1130420

Pryor, Jeff M ^[1]; Walker, William C ^[1]

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1. ORNL

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.

• Research Organization: Oak Ridge National Laboratory (ORNL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1130420
• Journal Information: Materials Evaluation, Journal Name: Materials Evaluation Journal Issue: 5 Vol. 72
• Country of Publication: United States
• Language: English

Related Subjects

Leak Test
Non-Destructive Examination
Pressure Change Measurement Test