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RSA-G2 Getting Started Guide

Page 14

RSA-G2 Test Station

An RSA-G2 test station, shown in the figure below, consists of several components. The primary compo

nents are the linear motor, stage, linear transducer, keypad, touch screen display, an environmental control

option, and various geometries needed for experiments.

Figure 1

RSA-G2 test station.

Stage

The stage is a motorized platform that supports the transducer. The stage can be raised and lowered to

facilitate sample loading using the keypad on the front of the test station, the touch screen, or through

TRIOS software control. The rate at which the stage moves can be adjusted through software.

RSA-G2 Keypad

The keypad, shown in the figure below, is an external device on the front of the instrument that is used for

several types of control. The indicator lights show green when that function is on and red when it is off.
The instrument power status light has five states applicable to the status light. These are: (1) Blinking

green is displayed when the instrument is powering up. (2) Steady green indicates that the instrument is

fully powered and ready to operate. (3) Blinking red indicates that the instrument is powering down.

Touch screen

Stage (transducer behind stage)

Keypad

Motor

FCO

Содержание RSA-G2

Страница 1: ......

Страница 2: ...ue multiwave arbitrary waveform and dielectric thermal analysis With such a broad range of solid analysis techniques the RSA G2 is uniquely positioned to address the widest range of applications from...

Страница 3: ...ermine and ensure their suitability for applications processability and end use performance The RSA G2 is the ideal platform for fully characterizing and understanding complex mechanical behavior of s...

Страница 4: ...se to external forces can be purely viscous or Newtonian behavior purely elastic or Hookean behavior or a combination of both Nearly all commercial materials of interest respond with a combination of...

Страница 5: ...art of the RSA G2 dual head solids analyzer is the high performance drive motor and unique transducer The sample is deformed from the bottom by a direct drive DC Servo motor featuring all new electron...

Страница 6: ...Transducer Motor Temperature Sensor Lower Geometry Mount Rare Earth Magnet __ Transducer Motor Air Bearings Air Bearings Drive Motor Upper Geometry Mount Technology 5...

Страница 7: ...bearing eliminating backlash A linear optical encoder is mounted directly between the stationary frame and moving bracket for precision head positioning to an accuracy of 0 1 1m Benefits of the indepe...

Страница 8: ...lysis during oscillation tests or post Fourier transformation analysis Higher odd harmonics that occur in the stress force signal in oscillation tests are a result of non linear response The ratio of...

Страница 9: ...Forced Convection Oven with tension clamp Technology 8...

Страница 10: ...n chamber to heat the sample quickly and without thermal gradients The FCO can be mounted on either side of the test station and comes standard with a long life intemal LED lamp and window viewing por...

Страница 11: ...ding In this mode the sample is deformed around three point contacts at both ends and its middle It is considered a pure mode of deformation as the sample is freely supported by fulcrums eliminating c...

Страница 12: ...e applied deformation is parallel to the sample thickness and the resultant deformation is simple shear Typical samples tested include polymer melts foams elastomers gels pastes and other soft solids...

Страница 13: ...IMMERSION TESTING I CLAMPING SYSTEMS...

Страница 14: ...erature is observed to decrease by almost 29 C from 102 C to 73 C The figure on the right shows a series of frequency sweeps run on an Elastomer sample immersed in synthetic oil at a temperature of 25...

Страница 15: ...DETA I DIELECTRIC THERMAL ANALYSIS ACCESSORY DETA...

Страница 16: ...ctric Bridges 25 mm Parallel Plates FCO Forced Convection Oven IEEE Internal to Instrument Keysight Model E4980AL 20 Hz to 1 MHz 0 001 to 2 Volts Keysight Model E4980A 20 Hz to 2 MHz 0 005 to 20 V The...

Страница 17: ...s Viscoelastic materials exhibit a phase angle anywhere between these two ideal cases depending on the rate of deformation The figures below show these sinusoidal responses along with the variety of r...

Страница 18: ...e strain amplitude At about 0 1 strain the modulus begins to decrease in magnitude showing the end of the LVR Outside the LVR the output stress response to the input strain is no longer sinusoidal Non...

Страница 19: ...int or peaks in the E or tan b The temperature at which the transition occurs depends on the parameter selected 9 108 o CL Temperature Ramp on Polycarbonate tan b Peak Tg 156 8 C E Onset Tg 148 6 C E...

Страница 20: ...re typically run over a limited range of 0 1 to 100 Hz as shown below on the right for a pressure sensitive adhesive at 70 C using the RSA G2 shear sandwich clamp At this temperature and frequency ran...

Страница 21: ...emperature Superposition studies as all the frequency dependent data are collected at the same temperature Soak lime Oscillatory Measurement Time Time temperature superposition TIS is used to extend t...

Страница 22: ...or fatigue studies The right figure shows an example of a two part epoxy cured on a supporting fiberglass braid using a dual cantilever clamp At short times the storage modulus is low and increases i...

Страница 23: ...constant stress is applied to the sample at tl and the resulting strain is measured over time At t 2 the stress is removed and the recovery recoil strain is measured The creep compliance D t is calcu...

Страница 24: ...ecovery was monitored for 60 s C C 0 0 Testing Modes and Applications 23 0 0 en l 5 0 0 2 c 0 0 X 0 a C Stress Relaxation on PDMS 106 105 104 103 102 Temperature 25 C 101 Strain 5 Shear Sandwich 10 10...

Страница 25: ...eating rate followed immediately by an iso strain condition and linear cooling rate It can be observed in the figure that under iso stress the strain gets larger as the sample is heated and softens At...

Страница 26: ...ow left figure shows a Polyethylene film tested using the tension geometry at 25 C and a constant linear rate of 5 I Im s A classical stress strain curve is observed with yield point ultimate tensile...

Страница 27: ...tures as low as 55 C and 100 C respectively Utilizing compressed air the Air Chiller Systems can help eliminate or reduce liquid nitrogen usage from any laboratory and offers an incredible return on i...

Страница 28: ...Temperature Range Heating Rate Cooling Rate Isothermal Stability SPECIFICATIONS 27 SPECIFICATION S I RSA G2 0 0005 N 35 N 0 00001 N 0 00005 to 1 5 mm 1 Nanometer 103 to 3 X 1012 P 1 0 0001 0 00001 2 x...

Страница 30: ...Verso Filler Page z z...

Страница 31: ...n getting Started guide Revision D Issued July 2022...

Страница 32: ...ata Analysis and Utility Software and their asso ciated manuals and TRIOS Help are proprietary and copyrighted by TA Instruments Purchasers are granted a license to use these software programs on the...

Страница 33: ...ual Supplement Please click the TA Manual Supplement link to access the following important information supplemental to this Getting Started Guide TA Instruments Trademarks TA Instruments Patents Othe...

Страница 34: ...2 010 Particular requirements for laboratory equipment for the heating of materials For European Economic Area In accordance with Council Directive 2006 95 EC of 12 December 2006 on the harmonization...

Страница 35: ...ntrol and laboratory use EMC requirements Part 1 General Requirements Emissions Meets Class A requirements per CISPR 11 Immunity Per Table 1 Basic immunity test requirements For the United States CFR...

Страница 36: ...VERTISSEMENT L utilisateur de cet instrument est pr venu qu en cas d utilisation contraire aux indications du manuel la protection offerte par l quipement peut tre alt r e Symbol Explanation This symb...

Страница 37: ...l parts must be performed only by TA Instruments or other qualified service personnel Ce symbole appos l arri re du panneau d acc s indique vous devez d brancher l instrument avant d effectuer des tra...

Страница 38: ...vous n tes pas form aux proc dures lectriques ne d posez pas les couvercles de l armoire sauf indications sp cifiques contenues dans le manuel La maintenance et la r paration des pi ces internes doive...

Страница 39: ...9 Mechanical Safety DANGER Keep your hands clear of the motor while it is running If you need to touch it turn OFF the motor first DANGER loignez vos mains du moteur lorsqu il tourne Si vous devez le...

Страница 40: ...Overview 13 System Components 13 RSA G2 Test Station 14 Stage 14 RSA G2 Keypad 14 RSA G2 Touch Screen 16 The RSA G2 Instrument Touch Screen 16 The RSA G2 Status Touch Screen 17 The RSA G2 Messages Tou...

Страница 41: ...sure Specifications 38 Air Quality 38 Making the Test Station Purge Connections 38 Connecting the Signal Panel 38 Connecting Cables and Lines 41 Connecting the Modular Power Supplies 41 Test Station L...

Страница 42: ...uctions for Geometry Installation 60 General Guidelines 60 Installing the Upper Geometry 61 Installing the Lower Geometry 62 Creating a Procedure 63 Running an Experiment 64 Maintaining the Instrument...

Страница 43: ...ller TA Instruments TRIOS software and a Forced Con vection Oven FCO to make up a rheological system Note that the FCO is the only environmental system that can be used with the RSA G2 Your controller...

Страница 44: ...t station the touch screen or through TRIOS software control The rate at which the stage moves can be adjusted through software RSA G2 Keypad The keypad shown in the figure below is an external device...

Страница 45: ...on tells you the state of the motor If the transducer and motor are both off lights are red pressing the motor button will also reset the transducer if a force overload occurred and caused it to turn...

Страница 46: ...the interactive functions shown on the touch screen displays NOTE For detailed information on the functions performed with the touch screen not found in this manual see TRIOS software online help The...

Страница 47: ...vides easy access to system information and diagnostics that may be used to troubleshoot your instrument Figure 4 RSA G2 Status touch screen The primary use of this screen is to provide an overview of...

Страница 48: ...location and network IP address infor mation In addition you can adjust FCO camera focus and light and calibrate the touch screen Figure 6 RSA G2 Settings touch screen Linear Transducer The RSA G2 ut...

Страница 49: ...d scaled to provide a force value Selection and control of the force range is performed using the TRIOS software Note that the maximum force measurable by the transducer is 3500 grams For axial force...

Страница 50: ...station needs to be moved or in the event that the air supply will be removed for an extended period of time Note that the motor cover must be removed to expose the threaded hole that is used to inst...

Страница 51: ...ouch the outer cover when the oven is running as the outer covers can get very hot Only touch the FCO handle if necessary When opening the oven to load samples the heaters and the gas flowing through...

Страница 52: ...below FCO with sample loaded CAUTION Make sure the purge air is flowing when the oven is on Failure to do so could cause damage to components inside the oven The purge line connects to the back of th...

Страница 53: ...Temperature testing above 500 C is limited to twohours Transducer may shut down ifrun for a longer time period The FCO has two forced gas gun heaters with counter rotating air flow for a wide tempera...

Страница 54: ...RT used for fast response temperature control Using the default system settings the RSA G2 reports and controls the measured temperatures using the mid oven air PRT temperature Measured oven temperatu...

Страница 55: ...k a solenoid valve to control liquid nitrogen flow into the Dewar and hardware to control the boiling of the liquid nitro gen to produce cold nitrogen gas within the flask A second solenoid valve cont...

Страница 56: ...rnace 100 C Discovery Hybrid Rheometer models with Environmental Test Chamber 85 C and ARES G2 RSA G2 with Forced Convection Oven 100 C The ACS 3 features low noise durable compressors approx 55 dB sm...

Страница 57: ...before being mounted on Air Chiller Table 3 ACS 3 and Chiller Panel Specifications Dimensions of Air Chiller H x W x D Without Chiller Panel With Chiller Panel 112 cm 44 in x 37 cm 14 5 in x 56 cm 22...

Страница 58: ...us que le tuyau d arriv e d air et tous les raccordements lectriques sont correctement effectu s NOTE For Camera accessory installation instructions refer to TRIOS software Help The FCO can be optiona...

Страница 59: ...er Additionally factors such as anisotropy and differences in strain dependence may yield inconsistent results for different geometries Available Geometries The following is a list of the geometries t...

Страница 60: ...sure 104 5 kg 230 lbs 12 7 kg 28 lbs 6 8 kg 15 lbs Power Test station Power supply enclosure Oven supply enclosure From power supply 90 264 VAC 16 amps max 180 264 VAC 47 63 Hz 13 amp max Operating en...

Страница 61: ...parts Choosing a suitable location Connecting the RSA G2 to a suitable air supply Connecting all cables and lines Connecting the RSA G2 to the customer line voltage outlet Connecting the RSA G2 to the...

Страница 62: ...e power and all power cords and cables to the power supply c Lock the motor and transducer d Turn off the air gas supply and disconnect all lines 2 Remove the four corner plugs by pulling them straigh...

Страница 63: ...G2 without a cart you must have three people to perform the following procedure 1 The handling points on the instrument are shown Grasp the instrument at those points Figure 16 Instrument handling po...

Страница 64: ...e open and closed positions of all heated environment control systems An area that does not restrict airflow to cooling fans on the rear of the power control box or the option controllers On A stable...

Страница 65: ...air should be 10 C or lower We highly recommend installing the optional air dryer filter between the test station and the air supply If your air supply has excessive moisture levels that result in imm...

Страница 66: ...r its location This is an input line to the test station that is used to supply air to the oven motor transducer air bearings and throughout the test station 4 Set the purge rate adjuster knob shown b...

Страница 67: ...roller AIR inlet Connected to the external air dryer This port is used to supply dry air to the oven motor transducer air bearings and throughout the test station The air supply pressure should be 80...

Страница 68: ...orm your laboratory manager or compressor maintenance personnel of your instrument requirements in detail You should also ask to be informed before any air supply interruption or compressor maintenanc...

Страница 69: ...pled and stored in the experiment data file This input signal is defined using TRIOS software ANALOG 1 OUT A 10 VDC signal that is defined using TRIOS software ANALOG 2 OUT A 10 VDC signal that is def...

Страница 70: ...channel instead of the motor strain signal User selectable Input scaling is 5 VDC NORMAL IN An external user input that can be connected to the internal normal measure ment channel instead of the tran...

Страница 71: ...is serrage main sur tous les c bles d ordinateur Chaque fois que vous bran chez ou d branchez les cordons d alimentation tenez les par les fiches et non par les cordons Connecting the Modular Power Su...

Страница 72: ...nected 3 Connect one end of the largemulti pin cable to the test station connector The other end will be connected to the RSA G2 test station later in this manual 4 Plug in up to four accessory power...

Страница 73: ...supply Figure 24 FCO controller power supply 3 Oven Connect the power cable from the oven to the connector to the left of the fan 4 Obtain the loose end of one of the power cables that are already con...

Страница 74: ...lk tank Bulk tank needs to be a low pressure 22 psi source 2 Obtain the LN2 transfer line 3 Connect the elbowed end of the transfer line to the LN2 Controller 4 Connect the opposite end of the transfe...

Страница 75: ...at the software knob is set for DHCP 2 Using keyboard icons enter the Machine ID and Location 3 Power down the RSA G2 4 Make sure the host computer LAN is set for DHCP 5 Ensure that TRIOS Instrument C...

Страница 76: ...mputer to LAN If you wish to also connect the computer to a LAN you will need to have already installed a network interface card 1 Locate the second Ethernet port on the back of the computer 2 Plug on...

Страница 77: ...n Once all cables and lines have been connected to the modular power supplies and the RSA G2 test station you can connect the power cable Install the power cable as follows 1 Make sure the power switc...

Страница 78: ...its location Counterclockwise rotation of the leveler retracts it lowering the instrument at its location Figure 30 RSA G2 leveler Follow the instructions below to perform this procedure 1 Make sure...

Страница 79: ...Figure 32 Air bubble left to right aligned NOTE If left to right leveling is not possible due to the fixed right rear foot on the instrument being below level it is necessary to either shim the table...

Страница 80: ...nd both front levelers equally until the level s air bubble aligns front to back with the circle on the glass face of the level Figure 34 Air bubble front to back aligned NOTE By extending both levele...

Страница 81: ...ion After this is done the LED near the Standby button on the keypad should be solid red 3 Press the standby button on thetest station front panel shown in the figure below The instrument power status...

Страница 82: ...instrument is expected to be disassembled for maintenance disconnected from its compressed air source or is being moved then it is necessary to turn the power to the system completely off Please foll...

Страница 83: ...priate geometry for the desired test and sample Creating or choosing the test procedure and entering sample and instrument information through the TRIOS Instrument Control Software Loading the prepare...

Страница 84: ...details on how to perform that calibration refer to the online documentation accessed through the TRIOS software The table below lists required tasks and the recommended interval for each task Table 7...

Страница 85: ...TRIOS software Refer to TRIOS Help for additional information Table 8 RSA G2 Geometry Mass Size mm Type Position Mass mg Compliance mrad N m 3 pt bending top 69 0 10 3 pt bending bottom 84 0 15 3 pt...

Страница 86: ...e of steel is near zero If the values obtained from this test are abnormal please contact Technical Services for further assistance Force Calibration Perform a Force Calibration using TRIOS software R...

Страница 87: ...e best tested using the clamped bending geometry Above the glass transition these samples can be tested in either compres sion using the compression parallel plate geometry or in shear using the shear...

Страница 88: ...than 10 percent of the com manded strain If actual strain is much lower the sample needs to be made less stiff by lengthening it and making it narrower and or thinner If necessary change the geometry...

Страница 89: ...onofilament Linear tension cylindrical Length up to 55 mm1 optimal length 35 40 mm Diameter up to 0 5 mm Film Linear tension rectangular Length up to 55 mm1 optimal length 35 40 mm Width up to 12 7 mm...

Страница 90: ...e sample Make sure that the sample PRT does not actually touch the sample or geometry Close the oven care fully until you are sure the sample PRT is adjusted properly The alignment pins allow the geom...

Страница 91: ...nd concentric alignment Holding the geometry by the shaft align the notch on the geometry with the slot on the transducer mount and insert the geometry into the transducer mount Refer to Figure 36 for...

Страница 92: ...or dust at the location surfaces for parallel and concentric alignment Holding the geometry by the shaft align the notch on the geometry with the slot on the motor mount and insert the geometry into...

Страница 93: ...al functions that are obtained are dependent on frequency Step Transient A step test increments to a target value of stress creep strain stress relaxation or strain rate and measures the response as a...

Страница 94: ...other than ambient install the geometry and then adjust the temperature to the desired initial value Allow the geometry to reach thermal equilibrium 2 Enter the desired sample information using TRIOS...

Страница 95: ...r power supply module from the wall outlet 3 Inspect all the cords for frayed insulation or exposed bare copper wire especially in the immediate vicinity of the plugs on either end If any damage is fo...

Страница 96: ...the air dryer can be checked and changed Make sure the moisture indicator is green If it turns red disconnect the air line drain the filter bowls and change the filter cartridges Make sure the air dr...

Страница 97: ...e lower power supply module to the On position Cleaning the Touch Screen Clean the touch screen as often as desired Clean the touch screen with a household liquid glass cleaner and soft cloth Wet the...

Страница 98: ...s for the RSA G2 are listed below Refer to the table below when ordering parts Table 10 RSA G2 Replacement Parts Part Number Description Replacement coalescing filter element 613 06404 Replacement par...

Страница 99: ...Issued November 2013 Supplement to Getting Started Guide TA Instruments Manual Supplement...

Страница 100: ...Page 2 TA Instruments Manual Supplement This page is intentionally blank...

Страница 101: ...t OEM Customer License Agreement for Embedded Systems 6 Attachment B to End User License Agreement TRIOS Optional Software 9 Attachment C to End User License Agreement Discovery Thermal Instruments 3r...

Страница 102: ...ftware as a Demo or Evaluation version then your license rights under this EULA shall extend solely for the evaluation period You acknowledge that any Demo or Evaluation version may not be at the same...

Страница 103: ...ntal special or consequential damages loss of data or data being rendered inaccurate loss of profits or revenue or interruption of business in any way arising out of or related to the use or inability...

Страница 104: ...esses for which the DEVICE has been designed and marketed by TA Instruments This license specifically prohibits any other use of the software programs or functions or inclusion of additional software...

Страница 105: ...upport services related to the SOFTWARE MS Microsoft Corporation and their affiliates may use this information solely to improve their products or to provide customized services or technologies to you...

Страница 106: ...nstruments on separate media and labeled Recovery Media you may use the Recovery Media solely to restore or reinstall the SOFTWARE originally installed on the DEVICE Backup Copy You may make one 1 bac...

Страница 107: ...on Linear Analysis Package This data analysis option may be installed on the primary instrument control computer as well as one other computer provided the software is only used for analysis of data g...

Страница 108: ...taining the applicable 3rd party license agreement Note that these PDF documents are available only through the installation of TRIOS Instrument Control Software and its associated documentation Adobe...

Страница 109: ...ITCRun is a trademark of TA Instruments Waters LLC 159 Lukens Drive New Castle DE 19720 BindWorks is a trademark of TA Instruments Waters LLC 159 Lukens Drive New Castle DE 19720 TA Instruments Patent...

Страница 110: ...ibes proprietary technology patented by TA Instruments Waters LLC U S Patent No 6 931 915 Platen for Automatic Sampler describes proprietary technology patented by TA Instruments Waters LLC U S Patent...

Страница 111: ...C U S Patent No 5 973 299 Metallic Sheet Insulation System describes proprietary technology patented by TA Instruments Waters LLC U S Patent No 5 915 283 Dynamic and Thermal Mechanical Analyzer Having...

Страница 112: ...nformation on our latest products contact information and more see our Web site at http www tainstruments com TA Instruments Waters LLC Corporate Headquarters 159 Lukens Drive New Castle DE 19720 USA...

Страница 113: ...Page 1 Page 1 RSA G2 Solids Analyzer Revision G Issued May 2022 Site Preparation Guide...

Страница 114: ...tents 2 Ideal Setup 3 System Components 4 Instrument Measurements 5 Utility Requirements 6 Computer Requirements 7 8 Hardware 7 Software 8 Accessories 9 ACS and Chiller Panel 9 11 Air Dryer 12 Liquid...

Страница 115: ...ation with adequate floor space and a rigid laboratory bench that is level and is in a vibration free environment For optimal performance it is recommended that the instrument be placed by itself on a...

Страница 116: ...Revision G Issued May 2022 Page 4 MAIN SYSTEM COMPONENTS A B C A Computer Controller B Instrument C Power Supply Enclosure D Forced Convection Oven Enclosure E1 Liquid Nitrogen Controller LN2 Tank OR...

Страница 117: ...MAIN INSTRUMENT POWER SUPPLY ENCLOSURE FORCED CONVECTION OVEN ENCLOSURE Height 104 cm 39 37 in Height 34 cm 13 5 in Width 32 cm 12 5 in Depth 48 cm 19 in Depth 56 cm 22 in Width 46 cm 18 in Weight 87...

Страница 118: ...be free from oil 0 01 mg m3 and dirt 5 m Dew Point 10 C or better Pressure 100 psig 0 7 MPa Flow Rate 9 5 scfm 270 L min If using N2 gas as FCO heater source air flow rate is 6 scfm 170 L min Separate...

Страница 119: ...IOS Screen resolution Required 1280 x 1024 with 24 bit colors Recommended 1920 x 1080 with 24 bit colors Graphic memory 128 MB Screen LCD size Required 19 or greater Recommended 24 wide screen USB II...

Страница 120: ...Pack Microsoft Operating System Service Pack Updates Windows Operating System and associated Microsoft updates must be up to date Windows 10 must be 1709 or later Network A second network card for co...

Страница 121: ...MENTS Height 88 5 cm 35 in Depth 56 cm 22 in Weight 96 kg 211 lbs WITHOUT Chiller Panel Width 67 cm 26 5 in Weight 112 kg 247 lbs WITH Chiller Panel Height 112 cm 44 in Width 67 cm 26 5 in Depth 56 cm...

Страница 122: ...FCO CHILLER PANEL MEASUREMENTS SMC MODEL FCO CHILLER PANEL MEASUREMENTS PARKER MODEL DISCONTINUED Height 68 6 cm 27 in Width 54 6 cm 21 5 in Depth 20 3 cm 8 in Weight 8 2 kg 18 lbs Height 86 4 cm 34 i...

Страница 123: ...erial number plate on the rear of the unit US sites require an L6 20 single phase outlet Gas Air or nitrogen Pressure 6 9 bar 100 psig Flow rate 200 L min Temperature 20 30 C Dew point Must not exceed...

Страница 124: ...bs It has two mounting holes 22 3 cm 8 8 in apart Must be mounted upright to the wall within 183 244 cm 6 8 ft of the air source Customer must provide Means to connect to a 3 8 NPT male connector on t...

Страница 125: ...psig 207 kPa gauge may cause damage to the Liquid Nitrogen Controller Keep the supply line short and provide adequate insulation to minimize gaseous nitrogen build up in the supply line Failure to do...

Страница 126: ...personnel will be on site the day of installation Air Supply Pressure is 100 psig 0 7 MPa Available flow rate is 9 5 scfm 270 L min Dew point is 10 C or better Liquid Nitrogen Controller Customer mus...

Страница 127: ...and more see our website at http www tainstruments com To find your local TA Instruments office and contact information visit http www tainstruments com contact ta directory TA Instruments Waters LLC...

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