Stirring apparatus for a flash point determination apparatus comprising a selectively removable stirring device

A method for performing one of a flash point determination test and a combustion point determination test of a sample in a container, wherein a lid for closing the container and a stirring device for stirring the sample in the container are provided, wherein the method comprises a method for stirring the sample in the container closed by the lid, wherein the method for stirring the sample comprises:

• at least partially guiding a stirring unit through the lid into the sample in the container for stirring the sample;
• driving the stirring unit by a drive unit which is at least partially arranged outside of the lid, for stirring the sample by the stirring unit;
• coupling the stirring unit with the drive unit by a coupling unit;
• and
• actuating an actuation unit such that selectively:
• in a first actuation position, when pulling up the drive unit, the lid is detached from the container commonly with the stirring unit;
• or
• in a second actuation position, when pulling up the drive unit, the drive unit is detached from the container, and the stirring unit and the lid remain at the container, wherein the coupling unit and the actuation unit are configured in a cooperating manner, such that:
• in the first actuation position, the drive unit and the stirring unit are coupled with each other in an axially undetachable manner, and in the second actuation position, the drive unit and the stirring unit are decoupled from each other in an axially detachable manner.