During a workstation preparation operation, a technician moved a machine and caused a glass receptacle containing a residue from a priming composition awaiting destruction to drop to the ground. This action caused the contents to explode (10 g of priming composition made from red phosphorus, antimony, potassium chlorate, powdered glass and binder). The technician was struck by shattered glass on his legs. The container material was to be replaced.

The storage, transfer and waste destruction procedures were are all reviewed with the relevant technicians.