DOCSLIB.ORG

Thermo Scientific Viscometers

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Thermo Scientific Viscometers Thermo Scientific Viscometers Falling Ball Viscometer, HAAKE Viscotester® and Accessories Basic principles in rheology, Selecting a viscometer Viscometry Measuring instruments for the determination of the flow behavior of fluids are called viscometers. Viscosity is a material property which is dependent on different parameters such as mechanical stress and strain, time as well as Rotational viscometers temperature and other ambient Using a rotational viscometer, the conditions. viscosity is calculated from the measured torque and rotational Flow behavior speed as well as the dimensions In rheology we differentiate between of the measuring geometry. If the so-called Newtonian and non- measuring geometry fulfils certain Newtonian materials. Newtonian requirements (e.g. small gap), materials are characterized by a which is the case for coaxial viscosity which may depend on cylinder, plate/plate and cone/plate temperature but is independent of measuring geometries (DIN 53018, the shear rate (and shear stress). DIN 53019...), the absolute value of In contrast, the viscosity of non- the viscosity can be calculated. Newtonian materials depends on the shear rate. For most non- If the dimensions of the measuring Newtonian materials the viscosity geometry are not well defined, only decreases with increasing shear a relative value for the viscosity can rate. This behavior is called shear- be determined. In this case, the thinning, or pseudoplastic. A measured viscosity value not only material which viscosity increases depends on the ambient conditions, at increasing shear rates is called but also on the test method, shear-thickening or dilatant. i.e. the measuring geometry. Materials that do not flow until Falling ball viscometers the applied shear stress surpasses The falling ball viscometer is a a certain value are said to have a conventional and highly accurate yield-stress. instrument for the determination of the absolute value of the viscosity Shear Rate of a Newtonian material. The viscosity can be calculated from the falling time of the ball, the density of the ball as well as the diameter of the tube and the ball. Overview of Thermo Scientifi c HAAKE Viscometers HAAKE HAAKE HAAKE HAAKE Viscotester 1 plus & 2 plus Viscotester 6 plus & 7 plus Falling Ball Viscometer type C Viscotester 550 Description Page 3 Pages 4/5 Page 6 Pages 7-10 Measurement relative relative absolute* absolute** Standards ISO 2555 DIN 53015, ISO 12058 DIN 53018 / 53019, ISO 3219 Viscosity HAAKE Viscotester 1 plus: low L-Version: low to medium low to high low to high HAAKE Viscotester 2 plus: medium R-Version: medium to high Specials battery-powered hand-held instrument, 2 years warranty measurements temperature-controlled, digital display on gases application-oriented packages *For Newtonian substances **Using absolute measuring geometries 2 Thermo Scientifi c HAAKE Viscotester 1 plus & 2 plus Application User friendliness These small, battery-operated The operation of the HAAKE rotational viscometers are suitable Viscotester 1 plus & 2 plus is for quick and reliable tests and especially easy due to the one- comparative measurements for button operation. The Viscotester is quality control applications. The switched on and off by pushing the hand-held instruments can also button once. Pushing the button be operated on a stand. again selects the rotor type and starts the measurement. Order information Digital display Order-No. Description Contrary to the traditional Viscotester Typical application fi elds 399-0100 HAAKE Viscotester 1 plus: models where the viscosity value • Quick viscosity tests, e.g. Basic instrument with batteries is read from an analog dial, the for process optimization instrument holder HAAKE Viscotesters 1 plus and or machine adjustment 2 Measuring cups (A and B) 2 plus show the viscosity value on • Batch control in production 3 Rotors (No. 3, 4, 5) a digital display. Therefore, errors Delivered in a carrying case caused by misreading the dial belong Typical samples to the past. Possible handling errors 399-0200 HAAKE Viscotester 2 plus: • Printing inks, paints, inks as well as service information are • Shampoos, creams, lotions Basic instrument with batteries also shown on the display. instrument holder • Oils, greases, pastes • Sauces, thickeners 1 Measuring cup (3) Main features 3 Rotors (No. 1, 2, 3) • Quick, exact and reliable Measuring principle Delivered in a carrying case • One button operation A rotor rotating at a constant 222-1693 Calibration to a measuring • LCD display speed is immersed in the fluid to accuracy of +/- 1% FSD • No mains supply required (HAAKE Viscotester 2 plus) be tested; the fluid’s resistance to 222-1688 Battery charger incl. the rotation measures the viscosity 4 AA batteries of the fluid. The small battery- operated rotational viscometer can be operated independent of a mains supply, so that quick and reliable viscosity measurements can be performed virtually everywhere. Compatibility Measuring cups and rotors of the previous models HAAKE VT01 and VT02 can also be used with the plus units. Technical data Viscosity range 1 plus: 1.5 - 330 mPas 2 plus: 0.3 - 4000 dPas Temperature up to 150°C Rotor speed 62,5 rpm Reproducibility +/- 1% FSD Measuring accuracy standard: +/- 5% FSD optional: +/- 1% FSD (HAAKE Viscotester 2 plus) Standard display HAAKE Viscotester 1 plus η in mPas HAAKE Viscotester 2 plus η in dPas Optional HAAKE Viscotester 1 plus η in dPas HAAKE Viscotester 2 plus η in mPas 3 Thermo Scientifi c HAAKE Viscotester 6 plus & 7 plus Application The Thermo Scientific HAAKE Viscotester 6 plus & 7 plus units can be used for tests and comparative measurements for quality control according to recognized standards. Compatibility Measuring principle The basic ISO 2555 standard The HAAKE Viscotester is a clas si cal describes the design and the rotational viscometer that measures characteristic measuring technique the resistance of a test substance of a viscosity measuring instrument against a pre set speed. The resulting (torque, speed, rotor geometry). torque or resistance measures the If a rotational viscometer meets viscosity of the fluid. The higher the these requirements – as the HAAKE torque, the higher the vis cos i ty. Viscotester 6 plus & 7 plus do – the Due to the stand ard ized geometry, results comply with the Brookfield the shear rates gener at ed can only method and are 100 %-compatible be de ter mined precisely for as long as comparable viscometer New to ni an substances. versions are used. Version ”L“ or ”R“? Standards is mainly used for low-viscous R for medium-viscous sub stanc es L The HAAKE Viscotester 6 plus sub stanc es such as diluted solutions, is the ”standard” viscometer for & 7 plus meets the following oils, dispersions and emulsions. Milk- 80 % of all vis cos i ty measure ments. standards: like fl uids (2 - 5 mPas) would be an It is es pe cial ly suit ed for the me di um BS: 6075, 5350 example at the low end of viscosity viscosity range extending from ISO: 2555,1652 and motor oil would represent the sewing ma chine oil up to PVC ASTM: 115, 789,1076, 1084, 1286, high end. The meas ur ing range is plas ti sols or whipped cream. 1417, 1439, 1638, 1824, 2196, 2336, from 3 - 6 000 000 mPas. The meas ur ing range is from 20 2364, 2393, 2556, 2669, 2849, 2983, - 40 000 000 mPas. 2994, 3232, 3236, 3716 Common features of Additional features of the HAAKE Viscotester 6 plus & 7 plus HAAKE Viscotester 7 plus • Ready to go package – • Bi-directional RS232 interface unpack, switch on and start • Thermo Scientific HAAKE measuring viscosity RheoWin software (optional) for • Digital display of viscosity, measurement and data evaluation % torque, speed, spindle, upper • Temperature sensor Pt100 to viscosity limit monitor the sample temperature • Integrated automatic diagnostic functionality • Visual and acoustic signals at critical measuring conditions • Digital calibration of the torque with nationally traceable standards • 2 years warranty for the most stable measuring instrument in its class 4 Technical data Ambient conditions: Rotational speeds: The instruments can be used 0.1 / 0.2 / 0.3 / 0.5 / 0.6 / 1 / 1.5 / at ambient tem per a tures from 2 / 2.5 / 3 / 4 / 5 / 6 / 10 / 12 / +10 °C to +40 °C and a relative 20 / 30 / 50 / 60 / 100 / 200 humidity of up to 80 %. The Accuracy: < +/- 0.5 % of the pow er sup ply should be between absolute value 110 - 240V/50-60Hz. Torque: Display: The versions L and R differ in the η dynamic viscosity in mPas (cP) torque range roughly by a factor of 6. upper viscosity limit in mPas The value displayed is measured with a maximum (cP) uncertainty of +/- 1 % in relation to the full scale (100 %). % τ torque in % of the max. value n speed in rpm Viscosity range: # number of the selected spindle Accuracy: +/- 1 % of full scale, Reproducibility: +/- 0.2 %. Τ temperature in °C (F) Version L: 3 - 6.000.000 mPas in 84 ranges (21 speeds with 4 spindles) (only HAAKE Viscotester 7 plus) Version R: 20 - 40.000.000 mPas in 126 ranges (21 speeds with 6 spindles) Order information The Thermo Scientific HAAKE Viscotester 6 plus & 7 plus is supplied as a complete measuring unit consisting of the basic instrument with stand, set of spindles with a storage rack in a stable carry case with multilingual documentation. Order-No. Description Helipath - for comparative measurements 387-0100 HAAKE Viscotester 6L plus: on high viscous samples such Basic instrument with stand, spindles L1 to L4, rack, as creams, pastes, gels etc. spindle guard in a case - up and down movement of the 388-0100 HAAKE Viscotester 6R plus: measuring head allowing the Basic instrument with stand, spindles R2 to R7, rack, spindle guard in a case needle spindle to cut into fresh material tracing a helicoidal 389-0100 HAAKE Viscotester 7L plus: path through the sample Basic instrument with stand, spindles L1 to L4, rack, spindle guard, Pt100 sensor in a case Adapter 390-0100 HAAKE Viscotester 7R plus: - stainless steel sample chamber, Basic instrument with stand, spindles R1 to R4, rack, removable spindle guard, Pt100 sensor in a case - Flow jacket that allows tem- Optional accessories: perature control of the sample between -10°C and 100°C Order-No.
Load more

Recommended publications
  • BROOKFIELD DIAL READING VISCOMETER with Electronic Drive
    BROOKFIELD DIAL READING VISCOMETER with Electronic Drive Operating Instructions Manual No. M00-151-I0614 SPECIALISTS IN THE MEASUREMENT AND CONTROL OF VISCOSITY with offices in : Boston • Chicago • London • Stuttgart • Guangzhou BROOKFIELD ENGINEERING LABORATORIES, INC. 11 Commerce Boulevard, Middleboro, MA 02346 USA TEL 508-946-6200 or 800-628-8139 (USA excluding MA) FAX 508-946-6262 INTERNET http://www.brookfieldengineering.com TABLE OF CONTENTS I. INTRODUCTION .....................................................................................5 I.1 Components .......................................................................................................5 I.2 Utilities ................................................................................................................6 I.3 Specifications .....................................................................................................6 I.4 Set-Up ................................................................................................................7 I.5 IQ, OQ, PQ .........................................................................................................7 I.6 Safety Symbols and Precautions .......................................................................8 I.7 Cleaning .............................................................................................................8 II. GETTING STARTED ..............................................................................9 II.1 Operation ...........................................................................................................9
    [Show full text]
  • HAAKE Viscometer Standard Operating Procedure [Updated Sept 10, 2014]
    HAAKE Viscometer Standard Operating Procedure [Updated Sept 10, 2014] HAAKE Viscometer 7 R+ Location of Machine: Composites Lab, RFM 1218 Location of SOP and Machine Operating & Safety Manual: Composites Lab website under resources; Composites Lab TRACS site; and Hardcopy near machine. Emergency Contact: Call 911 Call EHS & Risk Management at 512-245-3616 Call Head Lab Technician, Dr. Ray Cook (office 512-245-2050) Call Dr. Jitendra S Tate (office 512-245-4872) Before using this machine: You must have permission from Dr. Tate. You must have received formal training from technician or, trained research student (designated by Dr. Tate) related to machine safety and operation. You must read and understand SOP and Machine Cleaning Manual. You must use this machine under direct supervision of Dr. Tate or, Dr. Cook or, trained research student (designated by Dr. Tate). You must have signed “Lab Rules” document with Dr. Tate. This document must be signed every semester fall, spring, and summer (as applicable). If you do NOT follow above instructions you will be held responsible for your own safety and damages. Safety Precautions: Protective Equipment: Prior to performing this procedure, the following personal protective equipment must be obtained and ready for use: Gloves, Safety Goggles, Face Mask, Lab Coat. Important Safeguards: 1. Prior to performing this procedure, the following safety equipment must be accessible and ready for use: (e.g. chemical fume hood, biological safety cabinet, laminar flow hood, chemical spill kits) Fume hood 2. All liquids should be drained to containers for chemical disposal and properly marked. 3. In the event that a hazardous material spill during this procedure, be prepared to clean with cleaner according to MSDS of materials used.
    [Show full text]
  • Building and Validating a Rotational Viscometer Brian Cherrington & Jack Rothstein Mechanical Engineering Faculty Mentors: Dr
    Building and Validating a Rotational Viscometer Brian Cherrington & Jack Rothstein Mechanical Engineering Faculty Mentors: Dr. Maria-Isabel Carnasciali, Dr. Samuel Daniels Abstract This project was an effort to redesign an initial prototype rotational viscometer to experimentally test whether or not viscosity values vary significantly when the geometry of the viscometer is changed. The scope of the project involved designing and building a viscometer that could vary the gap between the inner and outer cylinders, variation of the testing fluid’s temperature, and control of the device’s RPM. After weeks of planning, designing, and fabrication the new viscometer was complete. In order to control the device, monitor the sensor readings, and calculate the testing fluid’s viscosity a LabVIEW program was created. Testing on medium to high viscous fluids was completed to determine if the viscosity values and the geometry of the viscometer are dependent or independent of each other. The results did show a correlation between measured viscosity and variations in the geometry of the viscometer. More testing is required to further verify the results and properly calibrate the device. Introduction For this project a new design was conceptualized, fabricated, and tested. This new design met several criteria including, Viscosity is often referred to as a fluid’s thickness or how much it resists deformation due to an applied force. Designed for future use in ME labs; Rotational viscometers measure the amount of torque needed Designed to be durable, sustainable, and easy to to rotate an object moving through fluid at a known RPM. dissemble and clean; Using the measured torque, RPM, and dimensions of the Multiple inner cylinders for varying gap sizes; device, the viscosity can be calculated using equation 1.
    [Show full text]
  • Miniav®-X Automatic Viscometer Instruction & Operation Manual
    MiniAV®-X Automatic Viscometer Instruction & Operation Manual 81.2254 i CONTENTS 1 INTRODUCTION/INSTALLATION 1 The miniAV®-X Automatic Viscometer .................................................................................. 1 Measuring kinematic viscosity ............................................................................................... 2 Safety cautions ..................................................................................................................... 2 Specifications ....................................................................................................................... 4 Installation ............................................................................................................................ 4 Required installation components ............................................................................... 4 Vacuum Pump unit connections ................................................................................. 6 Bath unit connections ................................................................................................ 6 VISCPRO® for Windows® XP® ............................................................................................ 6 Installing VISCPRO® software .............................................................................................. 7 Computer requirements ............................................................................................. 7 Windows® XP® installation .......................................................................................
    [Show full text]
  • List of Equipments in the Department (Chemical Engineering) Mechanical
    List of Equipments in the Department (Chemical Engineering) Mechanical Operation lab Fluid Mechanics Lab Heat transfer Lab Mass Transfer lab • Cyclone Separator • Reynold’s Apparatus • Double Pipe Heat Exchanger • Tray Dryer • Plate & Frame Filter Press • Bernoulli’s Theorem Apparatus • Shell & Tube Heat Exchanger • Sieve Plate Distillation Column • Vibrating Screen • Pitot Tube Apparatus • Vertical Condenser • Liquid-Liquid Extraction • Jaw Crusher • Calibration of Orifice meter, • Computerized Control Shell & • Adsorption of CO 2 • Ball Mill Venturi meter and Rota meter Tube Heat Exchanger • Steam Distillation • Roll Crusher • Coefficient of Discharge of • Thermal Conductivity of Metal • Bubble Cap Distillation Column • Rotary Vacuum filter Orifice and Mouthpiece Bar • Cooling Tower • Fluidized Bed • Film & Drop Wise Condensation • Diffusivity Apparatus • Single Effect Evaporator • Fluidized Bed Dryer • Simple Steam Distillation • Simple Distillation • VLE Apparatus • Equilibrium Flash Distillation • Humidification & Dehumidification • Refractometer Process Control Lab Chemical Reaction Engg. Lab Fuel Combustion Energy Technology Lab Environmental Lab • Process Training Simulator with • Plug Flow Reactor • Flash & Fire Point Apparatus • BOD Incubator Modules (Software) • Isothermal Batch Reactor • Aniline Point Apparatus • pH Meter • Pressure Control System • Single Tube Packed Bed Reactor • Orsat Gas Analysis Apparatus • Sedimentation Apparatus • Flow Control System • RTD in CSTR / Mixed flow • Redwood Viscometer • UV-VIS Spectrophotometer • pH control System Reactor • Bomb Calorimeter • DO Meter • Real Time Simulator Trainer • RTD in Tubular Reactor • Smoke Point Apparatus • Digital Conductivity Meter • Level Control System • Adiabatic Batch Reactor • Temperature Control System • Distillation Column • Two Tank Interacting system • Two Tank Non-Interacting System • CSTR Control System Research Equipments • UV-Spectrophotometer • Gas Chomatography .
    [Show full text]
  • Department of Chemical Engineering
    DISTILLATION FLASK : Made of borosilicate glass is specified dimension. Capacity: 125 ml. GRADUATED RECEIVER: Capacity : 100 ml. sub-division 1 ml. the cylinder is made of heat resistance borosilicate glass. FLASK SUPPORT ASSEMBLY BOARD: Three asbestos board on each with centre hole 32 mm, 37.5 mm and 50 mm. are provided. TEMPERATURE CONTROLLER: By solid state variable heat controller. Complete Apparatus as described above but supplied with 3 Nos. flask support boards and glassware for operation on 220/230 V, 1ph, 50 c/s, A.C. mains. SPARES FOR ABOVE DISTILLATION APPARATUS: 1. Distillation Flask, borosilicate glass, Capacity : 125 ml. packet of 2(two) pieces. 2. Receiver, 100 ml. packet of 2(two) pieces . 3. Thermometer : Mercury-in-Glass, with NABL Certificate IP – 5C, packet of two pieces.; IP – 6C, packet of two pieces; ASTM – 7C, packet of two pieces. ASTM – 8C, packet of two pieces. 4. Heating Element, packet of two pieces. …………….. 5. Flask support plate, packet of one each (Total 3 nos.) 32 mm. Centre Hole; 37.5 mm. Centre Hole; 50 mm. Centre Hole 2. FLASH POINT PENSKY MARTENS (CLOSED) CONFORMS TO : IS: 1448 & 1209 – 58, IP: 34, ASTM: D-93 SPECIAL FEATURES: Cup & Cover with ebonite handle for operating at high Temperature. For determining the flash point of petroleum products having a flash point above 120º C (48.89º F). The instrument which will give trouble free service under continuous operating conditions. The cast iron air bath is fitted with heaters for uniform heating. An enclosed safety type heater made of nichrome heating element. Temperature is controlled by Digital Temperature Indicator cum controller which ensure smooth and easy control of the temperature.
    [Show full text]
  • Physical Quantity Measured by a Vibration Viscometer (Re: JCSS Standardization of Viscosity)
    Article for the 23rd Sensing Forum Theme: Physical Quantity Measured by a Vibration Viscometer (Re: JCSS Standardization of Viscosity) Presented by: Naoto Izumo R&D Division, A&D Company, Limited October 2 ~ 3, 2006 Tsukuba Center Inc. Tsukuba, JAPAN Physical Quantity Measured by a Vibration Viscometer Subtitle: The JCSS Standardization of Viscosity Naoto Izumo R&D Division, A&D Co., Ltd. Higashi-Ikebukuro, Toshima-ku, Tokyo 170-0013 Japan Abstract The objective of this article is to introduce a viscometer that utilizes a new viscosimetry measuring method. In addition, the article will recommend a new unit system, which is utilized in the vibration viscometer. Using examples, the article explains JCSS viscosity standardization and recent requirements for viscosity measurements. Keywords: Vibration Viscometer, Static Viscosity (Viscosity × Density), Viscosity JCSS, Cloud Point Introduction The following is an introduction of the vibration viscometer, a new method for measuring viscosity. In addition to providing a description of the physical quantity that is measured using the vibration viscometer, a new unit system for viscosity will be proposed. Furthermore, there is an explanation regarding the Japan Calibration Service System (JCSS) standardization of viscosity and viscosity measurements using actual examples. There is also discussion of recent requirements for measuring viscosity. History and Development of Viscosity Measurement The history of viscosity measurements is extensive and is believed to date back to when people began measuring the viscosities of engine oils with the advent of the automobile industry in the United States. In the U.S., it had become necessary to control the viscosities of engine oils as a method of maintaining the performance of engines.
    [Show full text]
  • QCM Viscometer for Bioremediation and Microbial Activity Monitoring Wesley A
    304 IEEE SENSORS JOURNAL, VOL. 3, NO. 3, JUNE 2003 QCM Viscometer for Bioremediation and Microbial Activity Monitoring Wesley A. Gee, Member, IEEE, Kirsti M. Ritalahti, William D. Hunt, and Frank E. Löffler Abstract—A quartz crystal microbalance has been used to parameter eliminates the necessity of complex data interpreta- monitor the polymer production of a bacterial population in tion of samples by trained technicians. liquid medium. The increasing amount of produced polymer The aim of this study was to show that the QCM is a unique corresponds to an increase in the viscosity of the liquid, which is directly measurable as the fluid contacts the surface of the quartz and effective method to monitor a biological growth process to crystal in the sensor system. This procedure is being developed as aid in characterizing unknown bacterial populations. As a vis- a novel method for measuring microbial polymer production and cometer, this high shear rate device could be used in conjunc- growth of an environmental isolate obtained from river sediment tion with low shear rate laboratory viscosity measurement tech- contaminated with petroleum hydrocarbons. This measurement niques that currently include mechanical (rotational), capillary, technique may be used to monitor growth characteristics of unknown anaerobic bacteria when used in conjunction with falling ball, and other gravity or positive displacement methods. other currently employed microbiological test methods, such as spectrophotometry, to measure turbidity. II. DESCRIPTION OF BACTERIAL STRAIN In the presence of glucose, a novel, strictly anaerobic bacterial isolate, designated strain JEL-1, produces a viscous, as yet uniden- An unusual bacterial population, designated strain JEL-1, tified, polymer.
    [Show full text]
  • LABORATORY Viscometers
    LABORATORY VISCOMETERS www.irmeco.de Viscometer Cannon-Fenske Routine Cannon-Fenske Routine Viscometer according to ASTM D445-446, ASTM D2515, ISO 3104-3105 used for quick and easy measurement of the viscosities of trans- parent Newtonian liquids. Constant value (K) indication at +40°C and +100°C. Made of borosilicate glass, and non-alterable timing marks. Size Nominal Kinematic Art. No. No. viscometer constant viscosity range (mm2/s)/s mm2/s 25 0.002 0.5 to 2 10 15 81025 50 0.004 0.8 to 4 10 15 81050 75 0.008 1.6 to 8 10 15 81075 100 0.015 3 to 15 10 15 81100 150 0.035 7 to 35 10 15 81150 200 0.1 20 to 100 10 15 81200 300 0.25 50 to 250 10 15 81300 350 0.5 100 to 500 10 15 81350 400 1.2 240 to 1200 10 15 81400 450 2.5 500 to 2500 10 15 81450 500 8 1600 to 8000 10 15 81500 600 20 4000 to 20000 10 15 81600 All IRMECO® capillary viscometers are supplied with a Works Calibration Certificate issued in accordance with the conditions of accreditation granted by a National Metrological Register. 2 Viscometer Cannon-Fenske Routine Cannon-Fenske Opaque Cannon-Fenske Opaque Viscometer (reverse flow) according to ASTM D445-446, ASTM D2515, ISO 3104-3105 used for dark Newtonian liquids; especially suitable for liquids so dark in colour that cannot be seen in a Cannon-Fenske routine viscometer. It is also used to study shearing stress and shearing rate.
    [Show full text]
  • Brookfield Digital Viscometer
    BROOKFIELD DIGITAL VISCOMETER MODELDV-1+ Operating Instructions Manual No. M/92-021-A-892 BROOKFIELD ENGINEERING LABORATORIES, INC. 240 Cushing Street, Stoughton, MA 02072 USA Phone: 617-344-4310/4313 800-628-8139 (U.S. except MA); Fax: 617-344-7141 Telex: 924497 BRENLAB STOU (Western Union); 200195 BEL (RCA) TABLE OF CONTENTS L J:N'TRODUCfiON ......................................................................... 3 1 Com:p<>nents ............................................................................ 3 2 Utilities ................................................................................... 4 3 Specifications ......................................................................... 4 4 Set-Up ............................. ;....................................................... 4 S Key Functions ........................................................................ 5 ll. GETTJ:N'G STARTED .................................................................. 6 1 Autozero ................................................................................. 6 2 Spindle Selection .................................................................... 6 3 Speed Selection & Setting ...................................................... 7 4 Autorange Operation .............................................................. 9 S Out of Range Operation ....................................................... 10 Appendix A Cone/Plate Viscometer Set-Up .................................. 11 Appendix B - Viscosity Ranges .......................................................
    [Show full text]
  • Protocol: Measuring Viscosity of Cosmetics with Microvisctm
    Protocol: Measuring Viscosity of Cosmetics with microVISCTM Key Words: Face lotion, hand lotion, cream, viscosity, shear thinning, cleaning, high shear, non-Newtonian fluid, protocol, thixotropy Goal: Cosmetic lotions are often non-Newtonian fluids with yield stresses and thixotropic structure. These properties are vital for their function as selfcare products, but also make their rheological properties difficult to characterize. In particular, data collection can be time consuming and instrument cleaning can be challenging. This application note will share an easy-to-implement protocol to precisely measure complex cosmetic formulations using VROC technology. Introduction Skin care is an important part of personal healthcare. The epidermis is one of the body’s largest organs and is the first line of defense against pathogens, so maintaining and promoting healthy skin is vital for healthy life. Skincare products, specifically lotions, have been used for decades to promote skin health. When developing these products, manufacturers must carefully choose ingredients that must meet both consumer tastes and regulatory standards. These constraints make it vital to characterize lotion formulations, but also these criteria make consistent and fast measurements more challenging. Lotions are comprised of multiple materials including polymers, oils, waxes, gels, and silicones (Sharma et al. 2018). These ingredients can dramatically alter the viscosity of the lotion, but also make measuring viscosity difficult, messy, and variable. The combination of these ingredients can even cause lotions to behave as thixotropic materials. Thixotropy is the time dependent shear thinning property of non-Newtonian fluids (Mewis 1979). Thixotropic materials will slowly return to their high viscosity state once shearing has ceased.
    [Show full text]
  • Visco Handbook THEORY and APPLICATION of VISCOMETRY with GLASS CAPILLARY VISCOMETERS Welcome to SI Analytics!
    Visco handbook THEORY AND APPLICATION OF VISCOMETRY WITH GLASS CAPILLARY VISCOMETERS Welcome to SI Analytics! We express our core competence, namely the production of analytical instruments, with our company name SI Analytics. SI also stands for the main products of our company: sensors and instruments. As part of the history of SCHOTT® AG, SI Analytics has nearly 80 years experience in glass technology and in the development of analytical equipment. As always, our products are manufactured in Mainz with a high level of innovation and quality. Our electrodes, titrators and capillary viscometers will continue to be the right tools in any location where expertise in analytical measurement technology is required. In 2011 SI Analytics became part of the listed company Xylem Inc., headquartered in Rye Brook / N.Y., USA. Xylem is a leading international provider of water solutions. We are pleased to introduce you to the Visco Handbook! It replaces the previous brochure "Theory and Practice of Capillary Viscometry". This has been updated, redesigned and restructured. The information content of some areas such as polymer analysis was increased and specially themed areas such as hydrodynamic principles were moved into their own appendices so as not to deter the reader by too much theory. The focus was placed on the practical and general information needed by each user of capillary viscometry. Both laboratory experiences and policies of the relevant standards are considered here. We thus hope to provide you with a faithful companion for everyday laboratory work, one that you can use profitably. We of SI Analytics are pleased to work with you successfully in the future.
    [Show full text]