## Description With one mark graduation and interchangeable polyethylene stopper. The details on each flask include confirmation of compliance to International Standards as well as an individual re-order code. Capacity 50mL, tolerance 0.06mL, stopper diameter 12/21mm, neck O.D. 15mm. ## Specifications ||| | ------------ | ------------ | |Stopper Material| Polyethylene| |Color| Clear| |Capacity| 50mL| |Tolerance| ±0.06mL| |Classification| Class A| |Material| Borosilicate Glass| |Graduated| Yes| |Height| 139mm| |Certifications| ISO 1042, DIN 12664|