| 摘要 |
The invention relates to a test vessel (1) for a monitoring device for vessels, comprising a plurality of first marking rings (2) which surround the bottle body (7) at least in some sections at predefined fixed heights, and a plurality of marking lines (4) which run in a longitudinal direction (L) of the test vessel (1). According to the invention, the first marking rings (2) are respectively arranged at constant, predefined distances from one another in the longitudinal direction (L) of the test vessel (1). The marking lines (4) intersect at least some of the first marking rings (2), and the marking lines (4) are respectively arranged at predefined distances from one another in a circumferential direction of the test vessel (1).
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