Pulp Testing - ISO 5351

Determination of the LVN of Pulps – using the PSL Rheotek RPV-1 AutoPulpIVA

The PSL Polymer Testing Laboratory (based in the United Kingdom) is equipped with RPV-1 and RPV-2 viscometers for testing the solution viscosity of a wide range of polymers, cellulose and pulps.

For ISO 3105 Pulp testing, the laboratory can provide a quick turnaround of sample testing using the RPV-1 AutoPulpIVA. Testing will be carried out in full compliance with ISO 3105, including the measurement of flow times at a specified concentration at 25 deg. C.

Test Report

For each sample preparation, the test report will include the following information:

Sample ID and description

Dry matter content %

Details of the viscometer configuration used for testing

Concentration (including exact sample and solvent weight)

Dissolution conditions (temperature and time)

Average solvent flow time and interim flow times with precision obtained

Average solution flow time and interim flow times with precision obtained

Glass capillary viscometer (type, size, serial number constant)

Testing temperature (including verification of temperature by certified reference thermometer)

All calculated results, including: Relative viscosity, Specific viscosity, Reduced viscosity Viscosity Number Limiting Viscosity Number

Technical consultation

For each set of results submitted, PSL Rheotek will provide one-hour email or telecom technical support to discuss methodology and/or results reported.

How to submit your samples:

Please send your samples to:

PSL Rheotek USA – 12692 Sandy Drive, Suite 115, Granger, IN 46530, USA

PSL Polymer Testing Laboratory – Russell House, Burnham Business Park, Burnham-on-Crouch, Essex. CM0 8TE. UK

Approximately 5g of pulp should be sent with the following information: Sample ID, approximate LVN range, if known, as well as any custom requirements.

The PSL Polymer Testing laboratory will report results by pdf via email.

Fee code: T-DSV-ISO3105

The PSL Polymer Testing Laboratory can also test pulps in accordance with the following standards:

ASTM D1795

Tappi T230

SCAN 15:99

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