Cellulose Acetate - ASTM D871

The PSL Rheotek RPV-2 determins the Intrinsic Viscosity of Cellulose Acetate in dilute solution using glass capillary viscometers in accordance with ASTM D871. The test method requires a concentration of sample dissolved in Acetone solution or Methylene Chloride solution. Solvent and solution flow times are measured at 25 deg. C using the same size of suspended-level Ubbelohde type viscometer for both measurements. The method requires that at least two flow times are obtained. The RPV-2 software automatically calculates the Intrinsic Viscosity from each single determination using the modified Baker-Philippoff equation. The dual position RPV-2 (2) is an ideal configuration and can be combined with the RSS auto sampler. The iSP-1 Sample Preparation system can be used in conjunction with the RPV-2 to prepare samples on a precise weight to weight basis. Dissolution is carried out using a wrist action shaker with a programmable timer. Reported Results: Relative Viscosity (RV), Intrinsic Viscosity (IV) dL/g. 

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  • RPV-2 Polymer Viscometer

    RPV-2 Polymer Viscometer PSL-Rheotek

    RPV- 2 (2) Request Quotation

    RPV-2 (4) Request Quotation

    • Intrinsic Viscosity
    • K-Value
    • Limiting Viscosity
    • Viscosity Number
    • Inherent Viscosity
    • Relative Viscosity

    The PSL-Rheotek RPV-2 Polymer Viscometer is suitable for measuring the dilute solution viscosity of a wide range of polymers. Applications include PA, PET, PVC, PLA, PBT, PC, PE, PP, Cellulose Acetate, Inks, Biopolymers, Pulp and cellulose.

    RPV-2  is designed for full integration with sample preparation and sample dissolution modules from PSL-Rheotek. Using these integrated options ensures full integrity of data from end to end in the measurement process.

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