Flask - volumetric 20ml Class-A with PE Stopper, QR coded

• Volumetric flask with one graduation mark
• Calibrated to Class-A volumetric tolerances
• Made of high quality, chemical resistant borosilicate 3.3 glass
• Mechanically strong with low temperature gradient
• Calibrated to contain (TC,In) at 20 C reference temperature
• Individually calibrated by automatic calibration process
• Sharp and permanent graduation mark
• Includes chemical resistant polyethylene stopper
• Complies with ISO 1042 standard
• Autoclavable at 121 C (glass only)