April 3, 2025

This paper introduces a variety of product air leakage detection methods, including soapy water test, underwater detection method, airtightness meter test and helium detector test. It also discusses the shift from qualitative to quantitative airtightness testing, the differences in airtightness standards in different industries, and the common causes and solutions to air leakage problems. It is emphasized that the essence of hermeticity testing is to ensure the performance and safety of products, and looks forward to the development trend of its intelligentization and networking.