Full Description JIS Z 2329:2019 specifies the bubble leak testing methods to detect leakage positions of test object by pressurizing or vacuum one side of test surfaces and observing bubbles in a bubble solution applied to the test surface, which are formed by the differential pressure between the test surface and the opposite surface of test object.
JIS Z 2329:2019 history
2019JIS Z 2329:2019 Non-destructive testing -- Methods for bubble leak testing