ISO 6721-10:2025
2025-04
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.
General information
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Status: PublishedPublication date: 2025-04Stage: International Standard published [60.60]
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Edition: 4Number of pages: 20
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Technical Committee :ISO/TC 61/SC 5ICS :83.080.01
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Life cycle
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Previously
WithdrawnISO 6721-10:2015
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Now