These 25mL PYREX® graduated cylinders are calibrated "to deliver" (TD) in accordance with ASTM E-1272 and ASTM E-542. Each cylinder is individually serialized and supplied with a Certificate of Identification and Capacity, traceable to NIST standards. Permanent white graduations are easy to read. Cylinders are supplied with shock absorbing polyethylene bumper guards. For replacement bumper guards, see No. 3066.
Tested and calibrated in an ISO/IEC 17025 certified laboratory.