Brookfield Engineering

Corn Oil

Laboratory Viscometer Application Data Sheet

USE

Corn Oil is used as a cooking and salad oil and in the manufacture of margarines.

Method #1

Test Equipment:

  • Instrument: Viscometer or Rheometer
  • Spring Torque Range: LV
  • Spindle: YULA-15E
  • Accessories: Enhanced UL Adapter or "ULA-EY", TC-502P Programmable, Refrigerated Bath
  • Speed, rpm: 2, 4, 6, 8 and 10 rpm

The Enhanced UL Adapter™ may be used with various Brookfield Viscometers or Rheometers. In our example, we used a Brookfield LVDV-III+, with Rheocalc™ v3.1 software for automated instrument control and data acquisition. Our test temperature of 25°C was maintained by direct immersion of the Enhanced UL Adapter sample chamber into a TC-502P Programmable Refrigerated Bath. Representative data from the analyses are shown in Figure 1:


Figure 1: Corn Oil Tested with ULA Spindle at 25°C

The Figure 1 graph shows a relatively constant viscosity at 25°C (55 cP to 52 cP) over the speed range tested.

Method #2

Test Equipment:

  • Instrument: Viscometer or Rheometer
  • Spring Torque Range: LV
  • Spindle: LV-1
  • Accessories: TC-502P Programmable, Refrigerated Bath
  • Speed, rpm: 25, 50, 75 and 100 rpm

We used a Brookfield LVDV-III+ with LV guard leg, with Rheocalc™ v3.1 software for automated instrument control and data acquisition. The sample, tested in a 600-mL low-form Griffin Beaker, was immersed in a TC-502P Programmable Refrigerated Bath and equilibrated at 25°C. Representative data from the analyses are shown in Figure 2:


Figure 2: Corn Oil Tested with LV-1 Spindle at 25°C

The Figure 2 also shows a relatively constant viscosity, at 25°C, of approximately 52 cP over the speed range tested.