This standard specifies a leak test method in which the test specimen is pressurized or depressurized and the amount of leakage is measured by the change in gas pressure before and after a certain period of time.
JIS Z 2332:1993 history
2012JIS Z 2332:2012 Leak testing method using pressure change
1993JIS Z 2332:1993 Test method for leaks using the pressure change measurement