With paddle-type rotor, for determining the viscosity (or consistency) of paints. In accordance with ASTM Standards D 562, D 816, D 856, D 1084, D 1131, D 1337 and D 1338, Federal Test Standard 141A methods 3011.1, 3012, 3018, 3019, 3022 and 4281 and Federal Specification TT-P-14lC.

Calibrated by the standard method of the Krebs Pigment & Color Corp. to give readings which will duplicate those obtained with other similarly standardized instruments. A standard one-pint can is used. Slotted weights are provided in place of weight box.

Paddle rotor VI-9731-D34 replaces a former fork type to permit more reproducible readings. Results comparable with those using the fork type rotor are possible also in paints of little or no false body. See R. H. Sawyer “Development of a Consistency Test.” ASTM. Bulletin No. 102, p. 18; J. A. Geddes and D. H. Dawson, “Calculation of Viscosity from Stormer Viscometer Data”, “Industrial and Engineering Chemistry, Ind. Ed., Vol. 34, No. 2, p. 163; and C.F. Jackson and W.H. Madson, “A Method for the Standardization of Krebs Modified Stormer Viscosimeters”. ASTM Bulletin No. 161, p. 36.

Includes VI-2367-D10 Test Can, plate to hold can, VI-9731-D35 Paddle-Type Rotor, VI-9310-M74 Thermometer, VI- 9731-G45 Weight Set totalling 1160 grams, VI-9731-F10 Plastic Dust Cover, directions for use containing conversion chart for obtaining result in Krebs Units and standardization graph.

Same as VI-9730-G45 but supplied with VI-9731-F65 Stroboscopic Attachment.

Stroboscope synchronizes visually at required rotational speed of 200 rpm eliminating time- consuming trial and error in determining the timing and dial reading and making calculation and interpolations unnecessary.

Includes all components specified for VI-9730-G45. Extensions for the three vertical support rods, to provide clearance for use of one-quart paint can, are available on special order.