Description

Made to API/ASTM oil testing standards, Robinson’s 100mL 8-inch long cone centrifuge tubes are constructed from clear annealed glass, and feature etched white graduation lines for clear and accurate readings. In addition to the standard 0 to 100mL markings, these tubes are made with extra graduation lines for more precise readings between the major values. Tubes are available with the conventional neck opening to accept a cork style stopper (corks sold separately), or with a threaded neck to take a screw style cap (screw caps included).

As an added option, tubes can come factory verified or third-party certified. Factory verified tubes are accompanied by a certificate of accuracy. Certified tubes are volumetrically checked by an independent third-party laboratory according to API standards and come with a certificate depicting volume corrections at each checkpoint. (additional charges apply)

Divisions of Graduation:

• 0 to 1mL in 0.05mL
• 1 to 3mL in 0.1mL
• 3 to 6mL in 0.2mL
• 6 to 10mL in 0.5mL
• and 10 to 100mL in 1mL