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&A:
Although both test methods produce strength characteristics of a package and/or seal, there is no mathematical correlation for calculating value comparisons of seal and burst strength values. Both of the test methods play an equally important role in the evaluation of medical packages. Peel strength testing provides a means for determining the bond strength of two joining surfaces (e.g., dot-coated lid sealed to thermoformed tray flange), while burst testing provides a value that demonstrates whole package strength with a failure commonly occurring in the weakest part of the seal.
Consider reviewing extensive research comparing both test methods. Also, consider reviewing the article Strength and Integrity, Part Two: Basics of Seal-Strength Testing.
Contact your Oliver-Tolas packaging engineer for further assistance.
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