There are two types of leak testing methods for packaging: destructive and non-destructive. Some pharmaceutical manufacturers test packaging for leaks by placing them in water or blue dye baths. Then, the test administrator observes if liquid makes its way into the packaging. If the packaging passes, it still has to be destroyed because it was used in a test, making this traditional CCI testing destructive and expensive.
Using a non-destructive testing (NDT) method allows the examined packaging to survive the test unharmed, saving you money and resources.