Abstract
A blow molded high density polyethylene (HDPE) bottle [volume 1 US gallon (3.79 l)] failed due to cracks in its bottom surface. The bottle had contained a solution used for cleaning heat exchanger coils that contained, among other chemicals, hydrofluoric acid. Failure of the bottle destroyed a set of steel shelves and some associated equipment and necessitated an expensive cleanup. The bottle was examined in order to determine the cause of failure. Failure was attributed to an abnormally high level of crystallinity in the failed bottle, which caused the HDPE to be brittle and crack under a light impact load.
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