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Comparing The LFS Machine To The Methylene Blue Dye Test For Leak Testing Blister Packs
June 16, 2008
•Application Note: Comparing The LFS Machine To The Methylene Blue Dye Test For Leak Testing Blister Packs
OBJECTIVE: To determine the minimum hole detectable with the Bonfiglioli Engineering LF-BL leak tester and compare the result with the traditional Methylene Blue Dye test.
METHOD: Blister packs were Laser drilled to a hole of 4mm , 8mm, 12mm and 16mm. Each blister was then leak tested by the LF-BL leak tester and by the traditional destructive Methylene-Blue Test. Microscopic photograph images as can be seen in the photo below were taken as proof of the various hole sizes drilled in the blister pack. The following is the blister configuration:
Blister A: No Leak
Blister B: 4mm hole
Blister C: 8mm hole
Blister D: 12mm hole
Blister E: 16mm hole
The sample to be tested is of the blister pack type and the test is carried out on every single blister. The material under test is of plastic welded to aluminium foil. The following is a brief description of the test methods concerned.
Click Here To Download:•Application Note: Comparing The LFS Machine To The Methylene Blue Dye Test For Leak Testing Blister Packs
