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ISO 6721-10:2025

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Note: This standard has a new edition: ISO 6721-10:2025

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Abstract

This document specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range of 0,01 rad s-1 to 100 rad s-1 by means of an oscillatory rheometer with a parallel-plate or a cone-and-plate geometry. Angular frequencies outside this range can also be used. The method is applicable for determining values of the following dynamic rheological properties: complex shear viscosity η*, dynamic shear viscosity η', the out-of-phase component of the complex shear viscosity η”, complex shear modulus G*, shear loss modulus G”, shear storage modulus G', phase angle δ, and loss factor tanδ. It is suitable for measuring complex shear viscosity values typically up to ~10 MPa s. NOTE            The shear loss modulus G´´ is sometimes also called viscous shear modulus and the shear storage modulus G´ is sometimes also called elastic shear modulus.

Document information

  • Standard from ISO
  • Published:
  • Expires:
  • Edition: 4
  • Version: 1
  • Document type: IS
  • ICS 83.080.01
  • ISO TC ISO/TC 61/SC 5

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