Brookfield ametek thermosel accessory lab unlimited uk. There are other types as well, such as cone and tbar, but will not be discussed in this article. I have brookfield s technical pap shear rate determination disc spindles polymer engineering engtips. Spindles lv2c and lv3c are optional cylindrical spindles offering geometry for calculating shear rates. Disc spindles produce accurate, reproduc ible apparent viscosity determinations in most flu ids. The dve must have a spindle entry code number to calculate viscosity values. Cones ordered after shipment require cups to be returned for calibration to new cone. Heavier pastelike materials may require the use of a spiral adapter. Mar 09, 2016 disc spindles produce accurate, reproduc ible apparent viscosity determinations in most flu ids. The results obtained can be converted intoviscosity functions by a mathematical procedureoutlined in technical paper ar82, available frombrookfield engineering laboratories. Could anyone point the way to determining shear rates from data recorded using disc type spindles, specifically rv1 and rv5. Refer to the manual for specific warning or caution information to avoid. Boston chicago london stuttgart guangzhou 10561014 10m 1205 more solutions to sticky problems. The brookfield dial reading viscometer measures fluid viscosity at given shear rates.
Space doesnt permit a detailed discussion here, but more information can be obtained from brookfield engineering laboratories on these and other advanced methods. Brookfield offers an extensive range of thermosel spindles to provide a vast viscosity range. The dve memory contains parameters for all standard brookfield spindles and the two digit entry code for each spindle the complete list of spindle entry codes may be found in appendix c. Easy steps to successful viscosity measurement brookfield. Ezlock option ezlock spindles with a special coupling system are also available. Wellsbrookfield cones and cups are calibrated at the factory. S approximation of shear rate and shear stress values using disc type spindles ar82. Take care to avoid trapping air bubbles under the spindles, especially the disk type. Wells brookfield cones and cups are calibrated at the factory. This is an extract of the complete reprintpdf, available at the applied rheology website. More solutions for sticky problems rheology shear stress. Physiochemical and flow properties of lowfat yogurt. Lower and center spindle in the test material 600 ml beaker until the meniscus of the fluid is at the center of the immersion groove on the spindle s shaft.
M85150p700 fluid surface, and bring the spindle to an upright position and thread onto screw. Spindles in general are either cylindrical in shape, like the image in figure 1, or may have a disc at the bottom as shown in figure 2. A collection of articles discussing viscosity and instruments including how to make successful viscosity measurements, rheology, and many more. A series of articles and technical papers discussing various topics including viscosity, powder and texture testing for all different types of industries. More solutions for sticky problems linkedin slideshare. Use of the brookfield disc spindle and of the brookfield cone and plate viscometers in the sugar industry is investigated.
Please inquire about special spindle materials and configurations for unusual applications. Brookfield more solutions to sticky problems rheology. This option allows spindles to be quickly attached and removed, and may also. Spindle lv5 is an optional spindle designed to increase measuring range. Brookfield dial reading viscometer with electronic drive. Tbar spindles are used with the helipath stand to create a helical path through nonflowing materials such as creams,pastes, putty and gelatin. Our most popular spindle chamber combination is also available in a rugged, yet disposable version.
Disc spindles are the most common type found in qc labs. Cpa cups and spindles are compatible with cpe cups and spindles 3. A sample of 400 600ml in a suitable container is placed under the viscometer which is then lowered to dip the spindle into the sample up to an immersion mark on the spindle shaft. The results obtained can be converted into viscosity functions by a mathematical procedure outlined in technical paper ar82, available from brookfield engineering laboratories. Contact brookfield or our authorized dealer if you require s techniques for determination of extremely lowadditional assistance. Spindles can be identified by the number on the side of the spindle coupling nut. Labelled as lv or rv spindle sets, these comprise simple shafts ending in a disk or cylinder. Brookfield digital viscometer operating instructions. Physicochemical and flow properties of a yogurt enriched with polyunsaturated fatty acids omega3 in microcapsules, at two concentrations and during 3 weeks of cold storage, were studied and analyzed. More solutions to sticky problems ametek brookfield.
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