The PSL Rheotek RPV-1 (2) AutoPET two position AutoPET viscometer system is configured specifically for fully automating the Intrinsic Viscosity of polyethylene terephtalate (PET) in accordance with ASTM D4603 and/or ISO 1628 Part 5. The AutoPet is the most advanced fully automated viscometer available for polyester.
Auto systems fully integrate sample preparation, sample dissolution & sample loading, as well as flow time measurement, cleaning and reporting of results. One or two heating and stirring zones can be configured to control the dissolution of batches of samples. Both heating temperatures and stirring times are computer controlled and samples are cooled prior to being automatically loaded into the viscometer. Typical sample throughput is 6 to 8 samples per hour with two measuring positions.
The PSL Rheotek RPV-1 (2) AutoPET provides a reliable and precise system for measuring dilute solutions of polymers.
Auto systems not only combine the control of the sample preparation process but also the sample dissolution.
The RPV Auto system controls the heating and stirring times of polymer solutions, as well as cooling prior to
measurement.
Sample dissolution control is critical in order to ensure that polymer solutions, such as PET, do not degrade prior
to measuring their intrinsic viscosity.
The RPV-1 Auto automates the manual steps set out in standard methods, minimizing the variability of results.
Flow times are measured automatically using ASTM Ubbelohde viscometer tubes supplied with ISO 17025
certificates of calibration.
Cleaning is carried out in-situ utilizing solvents and a safe vacuum system.
The comprehensive RPV-1 Auto software program records all measurement data as well as calculating a wide
range of results.
Standard Practice: |
ASTM D2857 Determination of the dilute solution viscosity of polymers. |
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Test Methods General: |
ISO 1628 Part 1 Determination of the reduced viscosity, intrinsic viscosity and K-value of polymers in dilute solution using glass capillary viscometers |
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Test Methods Poly (Ethylene Terephthalate) PET: |
ASTM D4603 Determination of the Inherent Viscosity of Poly (Ethylene Terephthalate) PET |
ISO 1628 Part 5 Determination of the viscosity number (reduced viscosity) of? Poly (Ethylene Terephthalate) PET, poly (butylene terephthalate) PBT, poly (cyclohexylenedimethylene terephthalate) PCT and poly (ethylene naphthalate) PEN. |
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Other Test Methods: |
ASTM D445 Standard Test Method for determination of kinematic viscosity |
ISO 3104 Petroleum products – determination of kinematic viscosity |
IP 71 Section 1 Kinematic Viscosity |
Typical RPV Applications And Configurations? |
Polymer |
Test Method |
Solvent |
Concentration |
Temperature |
RPV Measuring Positions |
PET |
ASTM D4603 |
Phenol/Tetrachloroethane |
0.5% |
30°C |
1 to 4 |
PET |
ISO 1628-5 |
Phenol/Dichlorobenzene |
0.5% |
25°C |
1 to 4 |
PET |
ISO 1628-5 |
Dichloroacetic acid |
0.5% |
25°C |
1 to 4 |
Tube Type: AKV Ubbelohde, RPVm Ubbelohde
Part No. | Ordering Information |
RPV-1 (2) AutoPET | PSL Rheotek AutoPET Polymer Viscometer – two positions complete with integrated sample preparation, sample heating and stirring block and Smart Sampler. |
RPV-1 (2) AutoPET/D | PSL Rheotek AutoPET Polymer Viscometer – two positions complete with integrated sample preparation, dual zones sample heating and stirring blocks with shared cooling system and Smart Sampler. |
Part No. | Options |
RPVS010 | RPV start up kit including glass vials (144 pcs) and plastic caps (500 pcs) |
SIL-OIL | Silicone bath oil |
MIN-OIL | Mineral bath oil |
ACC-1 | Anti-corrosive coating – required for sulfuric acid and DCA applications |
TSC-1 | Third cleaning option – required for sulfuric acid or custom applications. |
SWC/U | Split waste upgrade option |
STATPACK | RPV StatsPack extraction of results to PC or LIMS |
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