The opened disposable capillary is manufactured by Hirschmann company. It is a glass with a predefined breaking point for exact volume configuration and a LOT number on packaging. It was labelled with "usable until" and a CE pursuant to IVD 98/79 EC. The bottle was filled with capillary action beyond the middle on the approximately printed ring mark. If the residual medium on the outside of the capillary is removed, the pressure is separated through the user's fingers.