Standard

ISO 6721-3:2021

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Abstract

This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus E*f of homogeneous plastics and the damping properties of laminated plastics intended for acoustic insulation, for example systems consisting of a metal sheet coated with a damping plastic layer, or sandwich systems consisting of two sheet-metal layers with an intermediate plastic layer. For many purposes, it is useful to determine these properties as a function of temperature and frequency.

Document information

  • Standard from ISO
  • Published:
  • Edition: 2
  • Version: 1
  • Document type: IS
  • ICS 83.080.01
  • ISO TC ISO/TC 61/SC 5

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