Engineering Laboratories Inc., USA) fitted with a LV spindle Number 4 at 10 rpm. Brookfield Rheocalc operating lv spindle factor software (version 3.1-1) was used to control the rheometer. The samples were determined for pH values at 25°C by a pH meter (Mettler Toledo, Switzerland). The …
Brookfield LV is a commonly used laboratory rotational viscometer in food applications. Brookfield supplies following information about spindles and ranges, the appropriate spindle needs to be deployed for the measurements depending on the viscosity range.
Sep 22, 2012 · Without changing the spindle factor to suit the newboundary conditions, the calculation from instrument torque to viscosity will be incorrect.Practically speaking, the guard leg has the greatest effect when used with the #1 & #2 spindles of the LVand RV spindle sets. Any other LV (#3 & #4) or RV (#3 - #7) spindle can be used in a 600 ml ...
This company were trying to measure a highly structured sample, and they had realised that every other spindle in the box leaves a great big hole in their sample. The only thing that they could stick into the sample was a spindle number seven. The same thing goes for the LV viscometer spindle number four. So what do we do in this situation?
The answer lv spindle factor lies in the fact that the Helipath/t-bar "viscosity" is merely a measure of the force required for the spindle to “cut through” or disrupt undisturbed sample. A “true” viscosity measurement, on the other hand, measures the stress needed to shear a sample in a highly-defined geometric arrangement, usually between two surfaces ...
eg (for LV/RV instruments) define what is called the spindle factors for the LV, RV, and HA/HB spindles The spindle factors are used to convert the ng or %Torque value) into centipoise. Theoretically, Lndary conditions, e.g., without the guard leg or in a spindle factors found on the Factor Finder cannot be nsity.
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