ISO - 6721-3
Plastics - Determination of Dynamic Mechanical Properties - Part 3: Flexural Vibration - Resonance-Curve Method
|Publication Date:||1 November 1994|
|ICS Code (Plastics):||83.080|
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.