The cap 91 is made from materials, typically a plastic resin such as polypropylene that can be sterilized using methods such as e-beam or gamma irradiation or ETO gas.FIGS. 10A, 10B, 100, 10D illustrates the various patterns that can be printed and used as optical targets for the purpose of positioning optical gauging dispensing tip assembly 1 along the center of a viewers optical axis at a specif