![]() ![]() In general, they can be used to measure paste-like samples (gels, ointments, …) at rotational speeds below 10 rpm. Vane spindles (V71-V75) are available for ViscoQC 100/300. K = 1 thousand / M = 1 million A.3.6 Vane spindles Results are valid for half a rotation of the T-bar spindle in the sample material (0.2 rpm = target time of 150s 2 rpm = target time of 15 s). A low rotational speed between 0.1 rpm to 2 rpm should be chosen for measurement. wall putty, lotions, creams, mayonnaise) together with the Heli-Plus (a motorized stand that moves the viscometer head down- and upwards). T-bar spindles are used to measure paste-like materials (e.g. The below ranges are applicable for ViscoQC 100/300 and are shown in or, respectively. M = 1 million, K = 1 thousand, N = RPM, Shear rate calculation for spindle SC4-18: 1.32 (SRC) ×10 rpm= 13,2 s -1 A.3.5 T-Bar Spindles Please contact your local Anton Paar representative if you require any information on the viscosity range. Nevertheless, it is possible to use the measuring systems with the instrument models as well and they will automatically calculate the viscosity. For each cell containing “-“, viscosity ranges are not applicable due to historical reasons. Viscosity ranges are shown in or, respectively. viscosity are calculated values for RH standard speeds (0.5 rpm to 100 rpm) viscosity are calculated values for L standard speeds (0.3 rpm to 60 rpm) The following tables give you an overview of the theoretical (calculated) viscosity range per measuring system. Hence, samples with a viscosity around 1 mPa.s (like water) can be measured with DG26 or UL26 and ViscoQC 100/300-L.Ī.3.3 Viscosity ranges per measuring system/spindle and torque model The largest surface area is provided by the double-gap and the ultra-low viscosity adapter system.Surface area decreases from CC26 to CC12.General rule of thumb for measuring systems: The lower the viscosity, the larger the surface area. If sample volume is limited ( <20 mL), an absolute measuring system (cylinder, double-gap, small sample adapter, ultra-low viscosity adapter), or a small vane spindle (V74, V75) is required. If large sample volumes (~500 mL) are available, both relative measuring systems (L1-L4 spindle, RH1-RH7 spindle, vane spindles V71-V75, T-Bar spindles), or absolute measuring systems (concentric cylinder, double-gap, small sample adapter, ultra-low viscosity adapter) can be used. It depends on the available sample volume and viscosity of the sample. A.3 Which spindle/measuring system should I choose? ** Manual input of reference density possible, no density measurement available. 200 BU for ViscoQC 100/300 – H (depending on measuring system) ![]() Typical samples: pastes, mayonnaise, peanut butter, ointmentsĪ.2 What information is displayed on ViscoQC?
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