Procédé permettant de déterminer automatiquement divers paramètres d'un échantillon et appareil pour la mise en oeuvre de ce procédé

摘要

The fluid switch controls the flow of a liquid from a funnel shaped receptacle and causes mixing of the liquid when the switch is in a "closed" position. The switch includes an air nozzle which extends into the receptacle and opens at a point adjacent a bottom outlet opening of the receptacle. The nozzle is adapted to direct an air stream toward and through the outlet opening to pre-empt liquid flow therethrough. A greater amount of air than is necessary to pre-empt flow of liquid through the outlet opening may be directed at the outlet opening so that the excess air bubbles through the liquid causing turbulence and mixing of the liquid prior to the "opening" of the switch.