A container comprising a disposable vial and a cap, wherein a bottom surface of the vial is recessed from a bottom end of a vial sidewall, the bottom surface comprised of:
- a ring depending from the bottom surface in a direction away from the bottom surface to a first height dimension;
- a plurality of lugs, which are integral with the ring, extending from the ring in a direction further away from the bottom surface to a second height dimension greater than the first height dimension;
- wherein a space is defined inside the ring in which a RFID tag can be positioned, and wherein the lugs can be fixed into a position in which they extend over the tag when the tag is positioned in the space.