Mocon AMETEK Dansensor Lippke 5000 - Leak Test

Dansensor® Lippke® 5000 EN User Guide 43
P/N 380419-C
05/2022
Leak test
A Leak test checks a package for leaks. The package is inflated to a predetermined pressure
(about 30-50% of the package’s burst pressure) and then the pressure loss is monitored to
determine whether or not there is a leak. The Leak test is compliant with ASTM F2095.
CAUTION! During a Leak test the package will normally not burst and so the
pressure in the package may not drop to a low level immediately after the test.
NOTE! When testing filled packages, precautions may be necessary to ensure that
the product does not contaminate the operator or the system. Depending on the
package contents, the use of safety glasses may be advisable. A protective hood
placed over the package may offer additional protection.
A Leak test is divided into 3 phases:
 The package is inflated to the test pressure.
 The test pressure is maintained and stabilised.
 Pressure regulation stops and valves are closed. The pressure drop is measured during
the test time. The test passes if the pressure drop is below setting and fails if pressure
drop is larger than setting.
The results from the Leak test are:
 Pressure drop
 PASS - if the pressure drops less than allowed.
 FAIL - if the pressure drops more than allowed or if package bursts.
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