ISO 6721-3:1994 Preview
Plastics -- Determination of dynamic mechanical properties -- Part 3: Flexural vibration -- Resonance-curve method
This standard was last reviewed and confirmed* in 2014.
*Therefore this version remains current
Specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus of homogeneous plastics and the damping properties of laminated plastics intended for acoustic insulation.