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Homepage>BS Standards>83 RUBBER AND PLASTICS INDUSTRIES>83.080 Plastics>83.080.01 Plastics in general>BS ISO 6721-6:2019 Plastics. Determination of dynamic mechanical properties Shear vibration. Non-resonance method
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immediate downloadReleased: 2019-04-29
BS ISO 6721-6:2019 Plastics. Determination of dynamic mechanical properties Shear vibration. Non-resonance method

BS ISO 6721-6:2019

Plastics. Determination of dynamic mechanical properties Shear vibration. Non-resonance method

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Standard number:BS ISO 6721-6:2019
Pages:18
Released:2019-04-29
ISBN:978 0 580 97460 1
Status:Standard
DESCRIPTION

BS ISO 6721-6:2019


This standard BS ISO 6721-6:2019 Plastics. Determination of dynamic mechanical properties is classified in these ICS categories:
  • 83.080.01 Plastics in general

This document describes a forced, non-resonance method for determining the components of the shear complex modulus G* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. Higher-frequency measurements can be made, but significant errors in the dynamic properties measured are likely to result (see 10.2.2 and 10.2.3). The method is suitable for measuring dynamic storage moduli in the range 0,1 MPa to 50 MPa.

NOTE

Although materials with moduli greater than 50 MPa can be studied, more accurate measurements of their dynamic shear properties can be made using a torsional mode of deformation (see ISO 6721-2 and ISO 6721-7).

This method is particularly suited to the measurement of loss factors greater than 0,02 and can therefore be conveniently used to study the variation of dynamic properties with temperature and frequency through most of the glass-rubber relaxation region (see ISO 6721-1). The availability of data determined over wide ranges of both frequency and temperature enables master plots to be derived, using frequency/temperature shift procedures, which display dynamic properties over an extended frequency range at different temperatures.