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Intrinsic Viscosity Analysis



This service provides the Intrinsic Viscosity (IV) of any polymeric material, including challenging ones such as high and ultrahigh molar mass polymers.

The viscosity test is performed in Polymer Char’s Intrinsic Viscosity Analyzer (IVA), which is compatible with any organic solvent such as decalin, tetralin, tri-chlorobenzene (TCB) and ortho-dichlorobenzene (o-DCB) among many others. Dissolution and analysis temperatures can be set independently, from ambient temperature to 200ºC, so that a wide range of polymers can be analyzed, even the most crystalline ones.

A study conducted by Polymer Char with different polymers in various solvents – PAN (polyacrylonitrile) in DMF (N,N-dimethylformamide), PET in phenol:o-DCB, PLA in TCB, and polyolefins in TCB and o-DCB – shows that all the intrinsic viscosity results obtained with IVA are in good agreement with the standard methods used as reference (compared to IV obtained with the traditional glass capillaries of the Ubbelohde type ISO 1628-3:2010 f.i. and ASTM D1601).

Intrinsic Viscosity Analytical Service Fees

IVA (Price/Sample)First SampleAdditional Samples
Intrinsic Viscosity425€348€
Additional Services:
Standard Data Re-processing109€109€
Minimum sample amount>0.5 g

Terms & Conditions

Analytical Services Frequently Asked Questions

The fractionation service is available thanks to the Instruments PREP mc2 and PREP C20, capable of fractionating samples by molecular weight or by composition (TREF or CRYSTAF). Please visit the link Preparative Fractionation for more information.

The resulting fractions are later analyzed by the corresponding technique (GPC or TREF/CRYSTAF) to check the good performance of the fractionation process. Finally, the physical fractions are sent back to the customer by courier service as well as the analysis results of the fractions, so the customer can check the separation.

For most of our analyses, you will receive a summary of the results along with an Excel file. However, the type of data and report form depends on the analytical service made. For specifics about the information sent, contact

Please send an email to and we will be pleased to help you.

To order any analytical service, please fill in the Analytical Service Request Form. Provide all the information available about the samples to be analyzed. Sent forms will be processed as formal orders for Polymer Char records. All the information provided is considered confidential information.

If a previous quotation is required, please do not hesitate to let us know by sending an email to

Samples should be shipped to:

Polymer Characterization S.A.
Valencia Technology Park
Gustave Eiffel 8
Paterna, Valencia
E-46980, Spain
Attn.: Analytical Services Department

We highly recommend to use courier service instead of post mail to ensure your samples arrive in good condition.

You will receive the results in less than a week. If you plan to send more than 10 samples, please check with our lab, as the response time may be longer in this case.
This time is approximate, and it depends on the service queue in the laboratory at the time of the order. Polymer Char will inform the customer if the turnaround time is expected to be longer.

Please refer to our Analytical Services Terms and in the first chapter, you will find the necessary amount for each technique.

Polymer Characterization, S.A. is committed to respecting and protecting your privacy and the personal data that you may provide to Polymer Characterization, S.A. Polymer Characterization, S.A. acts in full compliance with the Spanish Law Ley Orgánica 15/1999, de 13 de diciembre, de Protección de Datos de Carácter Personal (the Law on the Protection of Personal Data). Therefore, in case you access parts of the website where you can provide personal data (e.g. Contact Form or Press Mailing List) your personal data will be processed and kept in strict accordance with the relevant legislation. You can exercise your rights of access, correction, cancellation of opposition by writing to Polymer Characterization, S.A. to or to 8 Gustave Eiffel Str., Paterna, E-46980 Valencia, Spain.

This Privacy Policy affects as well to the Customers’ Samples’ Analysis’ results. If a Privacy Agreement is required by the Customer, please contact us.

For more information about Polymer Char’s Privacy Policy and Terms of Use please click here.

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