ČSN EN ISO 6721-3

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

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Detail information

Designation: ČSN EN ISO 6721-3

Publication date: 01/09/2021

Pages: 24

Country: Czech technical standard

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Anotation

This document specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus Ef* 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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