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.
Status: PublishedPublication date: 2021-02
Edition: 2Number of pages: 13
Technical Committee: ISO/TC 61/SC 5 Physical-chemical properties
- ICS :
- 83.080.01 Plastics in general
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ISO 6721-3:1994/Cor 1:1995
ISO 6721-3:2021Stage: 60.60
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