Pyrex* Reusable Glass Measuring (Mohr) Pipettes Serialized/Certified, Class

Calibrated to Class A tolerances in accordance with ASTM E-542, and ASTM E-1293. Each pipette is individually serialized and supplied with a Certificate of Identification and Capacity, traceable to NIST standards. Calibrated to deliver their total capacity without blow-out. Color-coded by size for easy identification. Colored graduations are enameled onto the glass. The top end of 5 to 25 ml sizes is constricted (Mohr type).