![]() Even deep or many scratches in the cup can lead to measurement uncertainties in the result, since the removed material changes the volume of the cup and thus no longer complies with the specified DIN standard. When using a flow cup, it is particularly important to ensure that it is cleaned thoroughly after each measurement, as residues in the nozzle and cup can falsify the further results. As soon as the outflowing stream breaks for the first time, you have to stop the time and note it down. Measurements made atelevated temperatures may also give poor precision due to loss ofvolatiles and to drying. If you now pull the glass plate horizontally from the beaker, you have to activate the stopwatch. 1.1 This test method covers the determination of the viscosity of paints,varnishes, and related products at a rate of shear of 12,000 s-1 1.2 Paints and varnishes that dry very rapidly may not givereproducible results with this test method. The resulting negative pressure keeps the material in the cup. for Cupriethylenediamine Disperse Viscosity. Then the glass plate is pushed over the edge of the cup to remove any excess material. Resistance of Paperboard ( Ring Crush Test ) ( 1968 ) courses / ace Cour. An overflow channel prevents the measurement from being falsified by liquid running off the sides. Make sure that the cup is filled to the top. Uncalibrated and Calibrated Viscometers Suspended level viscometer for measurement of kinematic viscosity of transparent Newtonian liquids Also used for. ![]() First you hold the nozzle underneath closed and fill in the substance to be measured. The openings of the nozzles, like the cup, are subject to a respective DIN standard. It consists of a cylindrical hollow body which in most cases ends in an exchangeable nozzle. The structure of a flow cup is standardized according to a DIN and is therefore always the same. Viscous pastes and other substances with a high viscosity are not suitable for measurement with a flow cup. ![]() However, it must be taken into account that this is only possible with less viscous liquids. Paint viscosity testers are used to measure liquids quickly and easily in order to determine their viscosity. ![]()
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