Cylinder -measuring-glass-3.3 borosilicate-class A-conformity certified

Manufactured from heat resistant borosilicate 3.3 glass according to DIN EN ISO 4788 standard. Calibrated by automatic robots according to DIN/ISO Class “A” standard. Conformity mark (“DE-M”) and batch number printed on the body surface. Batch certificate can be downloaded from website. Inscriptions on the flask bodies are printed with long lasting enamel color. Flawless spout design assures pouring without any drips. Hexagonal base with strengthened knobs ensures increased stability.