Yes, we can. However, you will need to perform a calibration yourself, before you can use the viscometer tube. To perform the calibration, you will need to buy two viscosity reference standards from us and then conduct the calibration procedure as described in ASTM D446 or ISO 3105. Our preference is to sell you a capillary viscometer complete with an ISO 17025 certificate of calibration. This certificate will state the serial number of your tube as well as the viscometer constant of that specific tube to 4 significant figures. The calibrated viscometer is ready to use out of the box.