Two positions Auto PA polymer system

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The PSL Rheotek RPV-1 (2) AutoPA 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 PA, 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.
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
PA ASTM D789 Formic acid 8.4% 25°C 2 to 4
PA ISO 307 Formic acid 0.5% 25°C 1 to 4
PA ISO 307 Sulphuric acid 0.5% 25°C 1 to 4
PA ISO 307 M-Cresol 0.5% 25°C 1 to 4

Tube Type: AKV Ubbelohde

Part No. Ordering Information
RPV-1 (2) AutoPA PSL Rheotek AutoPA Polymer Viscometer – two positions complete with integrated sample preparation, sample heating and stirring block and Smart Sampler.
RPV-1 (2) AutoPA/D PSL Rheotek AutoPA 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