Stormer viscometer

Storax [8046-19-3] Stormer viscometer Storm-water control Stout... 

Storage tanks, 24 280. See also Tanks sulfuric acid and oleum, 23 783 Storage tanks hazards, 27 844 Storeroom management, 75 471 STORET water quality database, 73 313 Stormer viscometer, 78 69, 27 736, 737 Storm water... 

The same apparatus was used, but quantities of paste were removed to give an air space in the vessel. On rapid agitation the volume increased, dependent on the air content required. Paste viscosities were measured, using a Stormer viscometer, which is a type of concentric cylinder viscometer. Although it is possible to obtain results in absolute terms, for comparative purposes the times for 100 revolutions of the rotor under a fixed applied torque were recorded. 

Flow properties. Slugging tendency of a fluidized bed increases with increased Stormer viscosity (207). The modified Stormer viscometer used ill this work is provided with a paddle that is rotated in the fluidized bed (by means of a weight attached to a string passing over a system of pulleys). Viscosity is measured by determining the weight required to spin the paddle at 200 r.p.m. Stormer viscosity of the bed increases with decreased gas velocity and with increased size and density of particles. Viscosity of coarse catalyst is decreased, within limits, by addition of fines. 

Stormer viscometers, concentric cylinder viscometers, rotating spindles, falling spheres, etc. Because these viscometers expend part of their energy in accelerating the particles, this produces change in their orientation, and because voidage in the bed is affected by the immersed objects, the data on apparent viscosity of fluidized beds have to be carefully examined. 

Consistency of Paints Using the Stormer Viscometer ASTM D 562-81. 

In a rotating paddle viscometer, such as the Krebs-Stormer viscometer commonly used in the paint industry, the shear rate and shear stress caimot be calculated, although it is possible to estimate them by comparison with results from other instmments. 

Hagen-Poiseuille equation Inherent viscosity Initial viscosity Specific viscosity Stormer viscometer Thixotropy... 

Stormer Viscometer. A rotating cylinder viscometer of a type that has found considerable use in USA for the determination of the viscosity and thixotropy of clay slips. (Industr. Engng. Chem., 1,317,1909.)... 

A Stormer viscometer has two concentric cylinders (outer stationary, inner moving). Measurement of viscosity is done by measuring the rate of rotation of the inner cylinder under a given torque. Obtain the velocity distribution for vq in terms of the applied torque. 

Krebs-Stormer Viscometer n This is the most commonly used viscometer in the paint industry. Paint consistency is measured by its resistance to stirring by a two-vane paddle. The two vanes are offset to avoid channeling in viscous paints. Approximate weights are added to a platform on a string attached to a pulley which is connected to the paddle until a speed of... 

Krebs Unit n An unit used in reporting viscosity measurements made with the weight-driven Stormer Viscometer used primarily for evaluating the viscosity of formulated paint and coating materials. A Krebs unit is the weight in grams that will turn a paddle-type rotor, submerged in the sample, 100 revolutions in 30 s. 

Conshohocken, PA, 1995 Patton, T. C, Paint Flow and Pigment Dispersion A Rheological Approach to Coating and Ink Technology, John Wiley and Sons, New York, 1979 Van Wazer, Lyons, Kim, and Colwell, Viscosity and Flow Measurement, Lyons Kim, Colwell, Interscience Pubhshers, Inc., New York, 1963) Air-Bubble Viscometer, Brookfield Viscometer, Ford Viscosity Cups, Stormer Viscometer, Viscosity and Zahn Viscosity Cup. 

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