Polyamide - ISO 307

The PSL Rheotek RPV-3 determins the viscosity number of polyamides in dilute solution using glass capillary viscometers in accordance with ISO 307.

The test method requires a 0.5% concentration. Solvent and solution flow times are measured at 25 deg. C using the same size of suspended-level Ubbelohde type viscometer for both measurements.

For Formic Acid a size 1 viscometer is used and a size 2 for m-Cresol. The method requires that two successive flow times are obtained within a 0.25% precision.

For each polyamide sample, ISO 307 also requires at least two determinations of the viscosity number in order to meet the repeatability criteria.

The dual position RPV-3 (2) is an ideal configuration. The iSP-1 Sample Preparation system can be used in conjunction with the RPV-3 to prepare samples on a precise weight to weight basis. Dissolution is carried out either using a wrist action shaker (WAS) for samples dissolved in Formic Acid and a reaction block with stirring and heating at 90 to 100 deg. C with a programmable timer. (SD-BM).

1 item(s)

  • RPV-3 Polymer Viscometer

    RPV-3 Polymer Viscometer PSL-Rheotek

    RPV- 3 (2) Request Quotation

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

    The PSL-Rheotek RPV-3 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-3  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.

    Learn More

1 item(s)