Polypropylene vessel for heating small quantities of liq.

摘要

A vessel, pref. of polypropylene, for heating small quantities of liq. e.g. for microbiological purposes, in a thermostat, includes a receptacle (6) for the liq. and a cover (8). A displacement member (10) is inserted in the receptacle and a free space (12) for liq. is formed between the displacement member and a heatable vessel wall. The displacement member has an extended shape and is located with its longitudinal axis on the axis (11) of the vessel and extends up to the liq. level at a partic. working quantity. Pref. the member is a projection from the vessel base and the transition region is rounded.