BS EN ISO 6721-3:1996

Plastics. Determination of dynamic mechanical properties. Flexural vibration. Resonance-curve method | Status: Superseded, Withdrawn

1 Scope This part of ISO 6721 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.