[The storage capability of pre-filled disposable plastic syringes]

The storage stability of a pre-filled plastic disposable syringe (piston type) of polypropylene as to solvents and ambient oxygen has been studied. To assess the permeability and impermeability of the sealing component parts, the syringes had been stored in a long-time test under different types of seal and different temperatures. Based on the results, the polypropylene plastic disposable syringes were on principal suited to be used in solvents as glycol, ethanol or water, the protection against ambient oxygen is, however, an insufficient one.