The BS/U-Tube Viscometer measures kinematic viscosity of transparent Newtonian liquids according to ASTM D445 and ISO 3104. Minimum sample volume is 7 mL (size A-C); 12 mL (size D-F); 23 mL (size G-H). Minimum bath depth is 280 mm (11 in). Viscometers are provided with a certificate of calibration and instruction sheet. Holders are sold separately and are available in sizes G & H only (H100).