Reference number
ISO 6721-3:2021
© ISO 2025
International Standard
ISO 6721-3:2021
Plastics — Determination of dynamic mechanical properties — Part 3: Flexural vibration — Resonance-curve method
Edition 2
2021-02
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Published (Edition 2, 2021)

ISO 6721-3:2021

Language
Format
CHF 98
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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.

General information

  • Status
     : Published
    Publication date
     : 2021-02
    Stage
    : International Standard published [60.60]
  • Edition
     : 2
    Number of pages
     : 13
  • Technical Committee :
    ISO/TC 61/SC 5
    ICS :
    83.080.01 
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