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ISO 6721-3:2021

Plastics — Determination of dynamic mechanical properties — Part 3: Flexural vibration — Resonance-curve method

General information
Valid from 19.02.2021
Directives or regulations
None
Standard history
Status
Date
Type
Name
19.02.2021
Main
16.03.1995
Corrigendum
03.11.1994
Main
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.
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