Individually boxed. Minimum sample volume: 7 mL. Require liquid bath depth of 203 mm (8"). Calibrated viscometers are supplied with a certificate of calibration and instruction sheet. Viscometers have the serial number and size printed on the outside of the box and on the viscometer. Additional sizes are available on special order. Holder not supplied. See Thomas numbers 9726M50 and M53 for holders.