Method for measuring pinhole size in food packaging
Started by GPER, Apr 22 2021 04:38 PM
Hello all, I am in the food packaging business and would like to know Best Known Method for measuring pin hole sizes. Does anyone have a test method or suggestions to share?
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Scale loupe or microscope? Maybe with a help of a dyed low-surface-tension liquid.
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Aside from the mentioned optical comparator and dye penetration, there is gas flow/detection. Depends on the packaging application for regulation. There is a 3rd party standard from British and International Standards BS EN 868-1
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