Two positions Auto polymer system PSL-Rheotek

RPV-1 Polymer Viscometer with heating/stirring integrated in Auto Sampler

RPV-1 (2) Auto Request Quotation

Integrated glass capillary viscometer system suitable for measuring the dilute solution viscosity of a wide range of polymers dissolved in acids, organic solvents or water, including PA, PET, PVC, PLA, PBT, PC, PE, PP, Cellulose Acetate, Inks, bio-polymers and other.

Part No. RPV-1 (2) Auto

Product Description


The PSL Rheotek RPV-1 Auto 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
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.
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
Test Methods Polyamides (PA):
ASTM D789 Determination of the Relative Viscosity of Polyamide (PA)
ISO 307 Determination of viscosity number Polyamides
DIN 53727 PA Bestimmung der Viskosität von Lösung, Polyamid (PA) in verdünnter Lösung.
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.
DIN 53728 PET, PBT Bestimmung der Viskosität von Lösung, bestimmung der Viskositätszahl von Polyeyhyleneterphthalat (PETP) oder Polybutyleneterephthalat (PBTP) in verdünnter Lösung.
Test Methods Poly Vinyl Chloride (PVC):
ASTM D1243 Determination of the Inherent Viscosity of vinyl chloride polymers in cyclohexanone.
ISO 1628 Part 2 Determination of the reduced viscosity (viscosity number) and K-value of PVC resins.
DIN 53726 PVC Bestimmung de Viskositätszahl und des K-Wertes von Vinylchlorid (VC) – Polymerisation.
JIS K 6722 Testing methods for poly vinyl chloride
Test Methods Cellulose Acetate:
ASTM D871 Testing Cellulose Acetate
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



Polymer Test Method Solvent Concentration Temperature Auto Measuring Positions
PA ISO 307 M-Cresol 0.5% 20°C 1 or 2
PET ASTM D4603 Phenol/Tetrachloroethane 0.5% 30°C 1 or 2
PET ISO 1648-5
DIN 53728
Phenol/Dichlorobenzene 0.5% 25°C 1 or 2
PET ISO 1628-5 Dichloroacetic acid 0.5% 25°C 1 or 2
PVC ASTM D1243 Cyclohexanone/THF 0.5% 30°C 1 or 2
PVC ISO 1648-2
DIN 53726
Cyclohexanone 0.5% 25°C 1 or 2


Tube Type: AKV Ubbelohde, RPVm Ubbelohde