ISO 307 - PA testing

Determination of the Viscosity Number of PA – using the PSL Rheotek RPV-2 AutoPA

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.

For ISO 307 PA testing, the laboratory can provide a quick turnaround of sample testing using the RPV-2 AutoPA with dual reaction blocks. Samples can include a wide range of polyamides (e.g. PA 6, PA 66 etc) as well as copolyamides and other polyamides that are soluble in formic acid, m-Cresol or sulphuric acid. Testing will be carried out in full compliance with ISO 307 using the solvent as specified by the customer. In particular, samples will be prepared on a weight to weight basis using the integrated sample preparation system.

An optional ISO 307 PA control standard can be run for each viscometer measuring position for each batch of samples measured. These can also be supplied for internal customer quality control purposes.

Test Report

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

Sample ID and description

Dissolving solvent: Formic Acid, m-Cresol or Sulphuric Acid

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

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 sample (or larger amount as it will be more representative of the variability) should be sent together with the following information: Sample ID, % of inert insoluble material, moisture content, dissolution temperature and time as well as any custom requirements.

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

Fee code: T-DSV-PA-ISO307

The PSL Polymer Testing Laboratory can provide analysis of the following types of polymers:

PET – ASTM D4603 – ISO 1628 – ASTM D2857

PA – ASTM D789 – ISO 307

PVC – ASTM D1243 – ISO 1628

PP/PE (including UHMW) – ASTM D4020 - ASTM D1601 – ISO 1628

Pulp, cellulose – ASTM D1795 – Tappi T230 – ISO 5351

Any other type of polymer that can be dissolved in organic or inorganic liquids.

The following solution viscosity apparatus is used by the laboratory: RPV-2 AutoPET RPV-2 with iSP-1 RPV-1 Gen. 2 AutoPulpIVA (intrinsic viscosity of cellulose) RPV-1 Gen. 2 with iSP-2 (viscosity of cellulose) RPV-1 HT (high temperature PP and PE)

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