According to ASTM D445, the kinematic viscosity of several kinds of liquids can be measured by viscometer tube (capillary viscometer tube) at 40 ℃ and 100 ℃. Parsian Technology Group has made different types of viscosity baths for temperature stability and special viscometer tubes are needed to use these baths. These tubes have different types based on the range of viscosity and the type of liquid which is measured, such as: U- tube, Ubbelohde viscometer, and etc.
Parsian Technology Group provides all types of viscometer tube with the different range of the viscosity (according to customer needs) with the calibration certificate that it presents the calibration factor.
It is important to note that these thermometers are not made by Parsian Technology Group.