Standard test method for consistency of paints measuring. Bykgardner brookfield 7508 stormer viscometer, digital ku2. Do not attempt to operate the viscometer with the shipping cap in place. 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. This krebs stormer viscometer is the ideal precision instrument for your laboratory and your research. The evo expert series is a modern, highquality viscometer that provides optimal performance in the testing of sample fluids.
Krebs stormer viscometer viscosity meter pcervi 6 pce. Viscometers are instruments used to measure viscosity, the internal friction of the layers of a liquid in motion. The experiment involves measurement of the time it takes for. 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. Viscosity measurement creating web pages in your account.
Ivb stormer viscometer viscosity meterdigital rotational viscometer stmivb. To do this we measure the viscosity using two different apparatuses. To change the order of your pdfs, drag and drop the files as you want. Viscometers free delivery possible on eligible purchases.
Viscosity describes a fluids internal resistance to flow and may be thought of as a. Conversion between stormer viscometer krebs units and. The force of friction which one part of the liquid offers to another part of the liquid is called viscosity. Fluids lab 1 southern polytechnic state university fluid.
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. The stormer type viscometer, digital ku2, 115v, provides a direct digital reading in krebs units ku, centipose and grams gm. Attach the spindle lefthand thread to the viscometer lower shaft by lifting the coupling screw slightly. Mount the guard leg, if used, spindle protector on the viscometer. The bykovisc ds digital stormer viscometer measures fluid viscosity in krebs units ku. 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. Pcervi 6 is a krebs viscometer or stormer viscometer used in industrial and research applications to measure krebs unit viscosity according to the astm. Knowing the krebs value, convert this value to centipoise viscosity. Astm d56210 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormertype viscometer. Thomas stormer rotational shear viscometer, calibrated. A weight, w, is used to drive a rotor that is partially submerged in a sample of liquid.
Astm d562 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormertype viscometer. Method a using ostwaldtype viscometer apparatus the apparatus consists of a glass utube viscometer see fig. The purpose of this experiment is to determine the viscosity of three different fluids, using the stormer viscometer shown in figure 1. It is designed around the astm d562 standard which can be used as an application reference. The free body diagram of the forces on a sphere accelerating in a viscous fluid is shown in figure 2. Thomas ships over 98% of domestic orders for instock items the same day we receive them or the very next day. 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.
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. The torque exerted by viscous shear on the rotor is. 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. The values of co and b shown below are based on a coefficient of thermal expansion typical to that for a. Apr 27, 2015 falling sphere viscometer the falling ball viscometer is based on stokes law. Conversion between stormer viscometer krebs units and viscosity cup drain time pug271 011899.
A standard ball is allowed to fall down this tube over a calibrated distance of 100 mm. The values of co and b shown below are based on a coefficient of thermal expansion typical to that for a mineral oil. Ku3 manual repair return form usa calibration template viscosity data sheet. This viscometer may be a reference viscometer driving head at least 400 mm that has been. Click add files and select the files you want to include in your pdf. Krebs stormer viscosity test instrument pcervi 6 pce instruments. Hold it firmly with one hand while screwing the spindle on with the other note lefthand thread. The torque exerted by viscous shear on the rotor is balanced by the work input of the falling weight.
How to merge pdfs and combine pdf files adobe acrobat dc. This precision ku viscometer is designed and engineered in accordance with international testing standards, e. The viscometer automatically starts or stops by lowering or raising the viscometer. Approximate viscosity in centipoise and krebs unit values at 25c are given in table below. You can merge pdfs or a mix of pdf documents and other files.
A paddle type spindle is driven at 200rpm by a constant speed motor. For thomasstormer viscometers based on nist value of 1. Microsoft edge is the default program for opening pdf files on windows 10. Interpretation of viscometer test results for polymer support fluids carlos lam1 and stephan a.
Fluid charactrization by use of a stormer viscometer fluid. 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. Standard test method for washability properties of interior. Haake viscometer standard operating procedure updated. Krebs stormer viscometer viscosity meter pcervi 5 pce. Viscometers or viscosimeters are important to many industries, including the adhesive, biotech, chemical, food, paint, petroleum, and pharmaceutical industries. This type of viscometer is known as a stormer or krebs viscometer. Vis1 rotational viscometer is designed for the determination of viscosity and theological behavior of fluid and semifluid. 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. Place the tube vertically in a waterbath maintained at the temperature indicated in the monograph and allow to stand for not less than 30.
Rearrange individual pages or entire files in the desired order. Offering brookfield stormer viscometer kerb viscometer ku2, model. 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. 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. The mooney viscometer mv 3000 is the leading test instrument for measurement of viscosity, scorching and stress relaxation on polymers and rubber compounds. Astm d562 102018 standard test method for consistency of. Viscosity and viscoelastic behavior of resins are very critical in composites manufacturing. D bottle known as pyknometer also, stand, beaker, unknown liquid, distilled water. The paddle type spindle is driven at constant 200 rpm by a computer controlled motor. Viscosity measurement purpose the purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a thomas stormer viscometer. This cap is designed to protect the viscometer spindle coupling nut during shipment. Bykgardner brookfield 7508 stormer viscometer, digital ku.
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. Calculation of viscometer constants for cannonfenske. Interpretation of viscometer test results for polymer support fluids doi. Fluid charactrization by use of a stormer viscometer. A wide variety of stormer viscometer options are available to you, such as auto testing machine, universal testing machine. Rheology rheology is the science of the flow and deformation of matter under the effect of an applied force matter. Thomasstormer viscosity standards calibrate manual and electronic thomasstormer viscometers. Assuming the particlesspheres are objects with very small reynolds numbers, the following. Viscosity conversion tables by norcross corporation. What links here related changes upload file special pages permanent. Data can be saved as a file or exported to excel format. Jefferis2 1lecturer, school of mechanical, aerospace and civil engineering, the university of manchester, manchester, m 9pl, u.
Determination of viscosity by using ostwaldtype, suspended. Interpretation of viscometer test results for polymer. Pcervi 5 krebs stormer viscometer viscosity meter stormertype viscometer to measure krebs unit ku viscosity automatically or manually. 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. Laboratory manual for eas 361 engineering fluid mechanics. The krebs unit ku is often used for thomasstormer viscometers. 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. Separate one page or a whole set for easy conversion into independent pdf files. Viscosity measurement of coatings is essential at each stage of the manufacturing process to ensure consistent quality standards. 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. Interpretation of viscometer test results for polymer support fluids. Interpretation of viscometer test results for polymer support.
Original fungilab viscometer for essential viscosity measurements, digital and easy to use. Astm d56210 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormer type viscometer. 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. Associate pdf files to always open in reader or acrobat on. Speed 200rpm temperature measurements with a rtd probe. The purpose of this experiment is to measure the viscosity of a glycerinwater mixture with a. 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. Astm d56210 standard test method for consistency of. This simplifies an established test procedure providing an immediate calculation of the viscosity value.
The reaction torque of the spindle rotating at 200rpm is converted to viscosity in krebs units. Pcervi 6 krebs stormer viscometer viscosity meter stormertype viscometer with integrated temperature sensor to measure krebs unit ku viscosity. Based on the popular traditional krebs method, using a weightdriven rotating paddle to sense the paint viscosity at a. Standard test method for washability properties of. Astm d562 standard test method for consistency of paints measuring krebs unit ku viscosity using a stormer type viscometer. Rotational viscometer alpha series allows fast and accurate viscosity readings.
Paints measuring krebs unit ku viscosity using a stormertype viscometer krebs unit stormertype viscometers coatings. The vis2 digital stormer viscometer measures fluid viscosity in krebs units. More solutions to sticky problems ametek brookfield. Calculation of viscometer constants for cannonfenske routine. Ostwald viscometer, rubber tube with screw pinch cock, relative density r. For liquids with viscosities which vary with flow conditions, an instrument called a rheometer is used. This type of viscometer consists of a circular cylinder filled by the liquid under investigation. This precision kuviscometer is designed and engineered in accordance with international testing standards, e. The first experiment is done by using the thomas stormer viscometer.
Please, select more pdf files by clicking again on select pdf files. Thus, a rheometer can be considered as a special type of viscometer. The stormer viscometer measures the viscosity of a fluid by measuring the time taken for. Merge pdf files combine pdfs in the order you want with the easiest pdf merger available. Viscosity of newtonian and nonnewtonian liquids rotary. Fill the viscometer, previously washed and completely dried, with the liquid under examination through tube l to slightly above the mark g, using a long pipette to minimize wetting the tube above the mark. A viscometer also called viscosimeter is an instrument used to measure the viscosity of a fluid. Falling sphere viscometer the falling ball viscometer is based on stokes law. Plug the metal jack of the power supply into the circular receptacle on the back of the viscometer. Brookfield stormer viscometer kerb viscometer ku2, model. Target customers oil industry, petrol industry, inks and solvents, paint, food, detergents, cosmetic, pharma and chemical industries low budget and entry level customers. When we perform rheological experiments with a viscometer, usually it gives us shear stress values corresponding to particular revolution per minute rpm. Stokes law can be used to calculate the viscosity of the fluid.