Description of glass capillary viscometer
Glass capillary viscometer to determine the liquid viscosity and polymer molecular weight of important instruments, the measurement range up to tens of thousands of centistokes (mm2 / S). Advantages are ease of use and accuracy compared to other types of viscometers. So widely used in petroleum industry, chemical industry, and other industrial and scientific research.
The Ubbelohde capillary viscometer produced by our factory conforms to the technical requirements stipulated by relevant national standards and ministry standards. In order to expand international exchanges, but also according to the specifications of IOS-3105 international standards for production, welcome to order.
Working glass capillary viscometer instructions for use
Capillary viscometer by structure, shape can be divided into Ukrainian, Fen's, Ping's, counter-current four. The viscosity of the sample they measured was kinematic viscosity. Has been widely used in petroleum, chemical, light industry, mechanical and electrical, defense, transportation, coal, metallurgy, medicine, food, papermaking, textile, research, institutions of higher learning and other units. Correct use of capillary viscometer is important to ensure accurate product quality and scientific data.
(A) washing and drying
Before using the viscometer must be washed, the general first with solvent residue dissolved in the viscometer repeated washing, and then alcohol or gasoline wash, and then fuming sulfuric acid or potassium dichromate wash 2-3 hours immersion, Finally rinse with tap water, distilled water and rinse, into the oven, heating to 150oC or so, or in the natural temperature upside down for days, so far.
(B) loading: (except Uzbek directly into the thick tube from outside)
Use a rubber ball with a small mouth (earbuds) or syringe to attach the small glass tube to the thick tube, hold the viscometer in the left hand, and block the thick tube mouth with your index finger. Turn the viscometer upside down and place the long glass tube with capillary Into the sample, pull the syringe, the sample is drawn to the second coil (so that the liquid level and the coil tangent), and then erected. After the countercurrent is installed, clamp the latex tube with the clamp and wrap it on the pipe that sucks the sample.
(C) thermostat and transfer vertical
The sample is placed on a viscometer thermostat shelf (clip), the capillary left, right, before and after the vertical transfer, measured at a constant temperature of 10 minutes, began to measure, note the first to the second coil Between the outflow time, the general election line three times (removed not normal) take the average.
(D) available capillary diameter, sample viscosity range, refer to the following table: (selected viscometer sample outflow time of not less than 200 seconds)
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