Pure samples may be stored in sealed glass ampules which develop a slight positive pressure of chlorine, halting the decomposition.

Every half-hour or so, whenever a pensive cloud seems to eclipse his mood, the lid is opened and a glass ampule removed.

Two fuzes are available for the mine, a conventional ball bearing retained striker and a chemical fuze, containing a glass ampule of acid over a flash composition.

Cal fumbled for the needle, and then with a steady hand he broke the glass ampule and filled the needle.

Inside it, he saw twelve shiny glass ampules, sitting in foam-lined pockets.

Each horn contained a glass ampule of electrolyte which would connect an open circuit if an ampule was broken by bending the soft metal horn.

There were a lot of uses for a propane torch besides tampering with glass medicinal ampules.

Each set contained more than two dozen glass ampules, each ampule contained about 100 milliliters of chemical agent.

Because of this, the vaccine was safe and able to be transported in glass ampules, and was also easy to use.