Offering brookfield stormer viscometer kerb viscometer ku2, model. Ivb stormer viscometer viscosity meterdigital rotational viscometer stmivb. Also used in paint, a stormer viscometer uses loadbased rotation in order to. Standard test method for washability properties of interior. Pcervi 5 krebs stormer viscometer viscosity meter stormertype viscometer to measure krebs unit ku viscosity automatically or manually. Hold it firmly with one hand while screwing the spindle on with the other note lefthand thread. Raptis, an ultrasonic instrument for measuring density and viscosity of tank waste, in science and technology for disposal of radioactive tank wastes, proceedings of the american chemical society symposium on science and technology for disposal of radioactive tank wastes, ed. This precision ku viscometer is designed and engineered in accordance with international testing standards, e. The bykovisc ds digital stormer viscometer measures fluid viscosity in krebs units ku. Viscosity describes a fluids internal resistance to flow and may be thought of as a.
Calculation of viscometer constants for cannonfenske. Astm d562 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormertype viscometer. More solutions to sticky problems ametek brookfield. Knowing the krebs value, convert this value to centipoise viscosity. Based on the popular traditional krebs method, using a weightdriven rotating paddle to sense the paint viscosity at a constant 200 rpm, this modern digital. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for an inner cylinder in the mechanism to perform a fixed number of revolutions in response to an actuating weight. Associate pdf files to always open in reader or acrobat on. The values of co and b shown below are based on a coefficient of thermal expansion typical to that for a mineral oil. Apr 27, 2015 falling sphere viscometer the falling ball viscometer is based on stokes law.
Viscosity conversion tables by norcross corporation. Falling sphere viscometer a glass or steel ball rolls down an almost vertical glass tube containing the test liquid at a known constant temperature the viscosity of fluid of liquid is directly related to the time taken by the ball to move between the two points. Interpretation of viscometer test results for polymer support fluids doi. The torque exerted by viscous shear on the rotor is balanced by the work input of the falling weight. The purpose of this experiment is to determine the viscosity of three different fluids, using the stormer viscometer shown in figure 1. Pcervi 6 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm. This type of viscometer is known as a stormer or krebs viscometer. Method a using ostwaldtype viscometer apparatus the apparatus consists of a glass utube viscometer see fig.
Interpretation of viscometer test results for polymer. Krebs stormer viscometer viscosity meter pcervi 5 pce. Microsoft edge is the default program for opening pdf files on windows 10. Vis1 rotational viscometer is designed for the determination of viscosity and theological behavior of fluid and semifluid. Do not attempt to operate the viscometer with the shipping cap in place. Interpretation of viscometer test results for polymer support fluids carlos lam1 and stephan a. Viscosity and viscoelastic behavior of resins are very critical in composites manufacturing. Astm d56210 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormertype viscometer. Standard test method for consistency of paints measuring. How to merge pdfs and combine pdf files adobe acrobat dc. You can merge pdfs or a mix of pdf documents and other files. Approximate viscosity in centipoise and krebs unit values at 25c are given in table below. Thomasstormer viscosity standards calibrate manual and electronic thomasstormer viscometers. Please, select more pdf files by clicking again on select pdf files.
Viscosity measurement of coatings is essential at each stage of the manufacturing process to ensure consistent quality standards. A paddle type spindle is driven at 200rpm by a constant speed motor. To change the order of your pdfs, drag and drop the files as you want. Stokes law can be used to calculate the viscosity of the fluid. Attach the spindle lefthand thread to the viscometer lower shaft by lifting the coupling screw slightly. The values of co and b shown below are based on a coefficient of thermal expansion typical to that for a. V viscosity 60 30 12 6 1 100 200 500 2 500 2500 5000 3 2000 4000 0 20000 4 0 20000 50000 00 rotors speed rmin vis1, viscometer specification. The stormer type viscometer, digital ku2, 115v, provides a direct digital reading in krebs units ku, centipose and grams gm. A standard ball is allowed to fall down this tube over a calibrated distance of 100 mm. Fluid charactrization by use of a stormer viscometer fluid. Krebs stormer viscometer viscosity meter pcervi 6 pce. The viscosity of a nonnewtonian material varies depending on the rate of shear, but krebs stormer viscometer can measure the viscosity at a set speed shear rate which provides a consistent standard. Mount the guard leg, if used, spindle protector on the viscometer.
Click, drag, and drop to reorder files or press delete to remove any content you dont want. Viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomasstormer viscometer. Ku3 manual repair return form usa calibration template viscosity data sheet. Target customers oil industry, petrol industry, inks and solvents, paint, food, detergents, cosmetic, pharma and chemical industries low budget and entry level customers. Based on the popular traditional krebs method, using a weightdriven rotating paddle to sense the paint viscosity at a.
Astm d56210 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormer type viscometer. Original fungilab viscometer for essential viscosity measurements, digital and easy to use. If the filling temperature t p is substantially different than room temperature, the viscometer constant at test ten1perature t is co 1 b tt t pd. Viscosity of newtonian and nonnewtonian liquids rotary. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for. Fluids lab 1 southern polytechnic state university fluid. Calculation of viscometer constants for cannonfenske routine. Conversion between stormer viscometer krebs units and. Rearrange individual pages or entire files in the desired order. Astm d562 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormer type viscometer. Thomas stormer rotational shear viscometer, calibrated. Trying to make sense of the standard stormer viscometer and methods that could be used to calibrate a device, ive been looking at the original stormer viscometer in order to get an idea of what grams actually means in the case of the stormer viscometer. This type of viscometer consists of a circular cylinder filled by the liquid under investigation.
Pcervi 6 krebs stormer viscometer viscosity meter stormertype viscometer with integrated temperature sensor to measure krebs unit ku viscosity. Pcervi 5 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm d562, astm d11 and astm d856 standards. Astm d56210 standard test method for consistency of. Data can be saved as a file or exported to excel format. Assuming the particlesspheres are objects with very small reynolds numbers, the following.
Pcervi 6 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm d562, astm d11 and astm d856 standards. Ostwald viscometer, rubber tube with screw pinch cock, relative density r. The viscometer automatically starts or stops by lowering or raising the viscometer. Place the tube vertically in a waterbath maintained at the temperature indicated in the monograph and allow to stand for not less than 30. Separate one page or a whole set for easy conversion into independent pdf files. Haake viscometer standard operating procedure updated sept 10, 2014 general information viscosity is a measure of the resistatnce of a fluid which is being deformed by either shear stress of tensile stress. Viscometers free delivery possible on eligible purchases. To do this we measure the viscosity using two different apparatuses. What links here related changes upload file special pages permanent. Brookfield stormer viscometer kerb viscometer ku2, model. Viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomas stormer viscometer. A viscometer also called viscosimeter is an instrument used to measure the viscosity of a fluid.
The vis2 digital stormer viscometer measures fluid viscosity in krebs units. When we perform rheological experiments with a viscometer, usually it gives us shear stress values corresponding to particular revolution per minute rpm. This precision kuviscometer is designed and engineered in accordance with international testing standards, e. Speed 200rpm temperature measurements with a rtd probe. Falling sphere viscometer the falling ball viscometer is based on stokes law. It is designed around the astm d562 standard which can be used as an application reference. Designed with a tft color screen and an intuitive touchpad, the evo expert also includes lightup led features for greater ease of use, a typea 2. Viscometers are instruments used to measure viscosity, the internal friction of the layers of a liquid in motion.
The first experiment is done by using the thomas stormer viscometer. Rotational viscometer alpha series allows fast and accurate viscosity readings. Interpretation of viscometer test results for polymer support fluids. The mooney viscometer mv 3000 is the leading test instrument for measurement of viscosity, scorching and stress relaxation on polymers and rubber compounds. Paints measuring krebs unit ku viscosity using a stormertype viscometer krebs unit stormertype viscometers coatings. This viscometer may be a reference viscometer driving head at least 400 mm that has been.
For thomasstormer viscometers based on nist value of 1. The krebs unit ku is often used for thomasstormer viscometers. This cap is designed to protect the viscometer spindle coupling nut during shipment. The free body diagram of the forces on a sphere accelerating in a viscous fluid is shown in figure 2. A weight, w, is used to drive a rotor that is partially submerged in a sample of liquid. Haake viscometer standard operating procedure updated.
Thus, a rheometer can be considered as a special type of viscometer. Rheology rheology is the science of the flow and deformation of matter under the effect of an applied force matter. Laboratory manual for eas 361 engineering fluid mechanics. This krebs stormer viscometer is the ideal precision instrument for your laboratory and your research. A wide variety of stormer viscometer options are available to you, such as auto testing machine, universal testing machine. The experiment involves measurement of the time it takes for. Fluid charactrization by use of a stormer viscometer.
Bykgardner brookfield 7508 stormer viscometer, digital ku2. The evo expert series is a modern, highquality viscometer that provides optimal performance in the testing of sample fluids. Click add files and select the files you want to include in your pdf. Then by comparing the rate of strain dudy and shear stress t, with different values for the drive weight w, we can determine if the fluids are newtonian or nonnewtonian.
The torque exerted by viscous shear on the rotor is. Thomas ships over 98% of domestic orders for instock items the same day we receive them or the very next day. D bottle known as pyknometer also, stand, beaker, unknown liquid, distilled water. The reaction torque of the spindle rotating at 200rpm is converted to viscosity in krebs units.
Plug the metal jack of the power supply into the circular receptacle on the back of the viscometer. While the viscolab 450 is designed for singlerange requirements, the viscolab 4000 is a small sample viscometer that is much more flexiblesupporting up to 12 different 20. Viscosity measurement creating web pages in your account. Astm d56210 standard test method for consistency of paints. All viscometer models feature 10 language options english, french, german, italian, japanese, portuguese, spanish, dutch, polish, and catalan, pushbutton control with easytouse menu system, motor selftest, user calibration to a known standard, and universal power supply. You can change the default program for pdf files to open it in a program thats more suitable and featurerich, such as acrobat reader dc or acrobat dc. The force of friction which one part of the liquid offers to another part of the liquid is called viscosity. The paddle type spindle is driven at constant 200 rpm by a computer controlled motor. Krebs stormer viscosity test instrument pcervi 6 pce instruments. Viscometers or viscosimeters are important to many industries, including the adhesive, biotech, chemical, food, paint, petroleum, and pharmaceutical industries. Conversion between stormer viscometer krebs units and viscosity cup drain time pug271 011899. Standard test method for washability properties of. Determination of viscosity by using ostwaldtype, suspended.
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