The Cannon Four-Bulb Shear Dilution Viscometer measures intrinsic viscosities extrapolated to zero shear rate with negligible kinetic energy correction. Minimum sample volume is 20 mL. Minimum bath depth for viscometers with the 10x range of shear rates is 430 mm (17 in) This is a calibrated viscometer which include a certificate of calibration and instruction sheet. Uncalibrated viscometers are also available.