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ISO 6721-3:1994

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

This standard has been reviewed and then confirmed in 2009 
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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.


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