Round bottom frosted spherical flask

Yellow enameled rod. Ecologically safe organic blue fill liquid (mercury free). Indelible and chemical resistant printing scale. Triangular ring to prevent the thermometer from rolling. Partial immersion (76 mm). The lot number is not printed on the thermometer. Linked to 3 calibration chains: MRA/ILAC (COFRAC. DKD...), NIST and GOST