. 4B is a cross-sectional side view of the ampoule of FIG. 4 taken along lines B-B. [0015]FIG. 5 is a bottom-end view of the ampoule of FIG. 1 after the removal of a bottom tab to expose a drain opening. [0016]FIG. 6 is a side view of the ampoule of FIG. 5 and further illustrating the removal of a top tab to expose a vent opening.