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ISO 6721-3

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

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Organization: ISO
Publication Date: 1 February 2021
Status: active
Page Count: 18
ICS Code (Plastics in general): 83.080.01
scope:

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.

Document History

ISO 6721-3
February 1, 2021
Plastics — Determination of dynamic mechanical properties — Part 3: Flexural vibration — Resonance-curve method
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...
6721-3
November 1, 1994
Plastics - Determination of Dynamic Mechanical Properties - Part 3: Flexural Vibration - Resonance-Curve Method
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...
ISO 6721-3
November 1, 1994
Plastics - Determination of Dynamic Mechanical Properties - Part 3: Flexural Vibration - Resonance-Curve Method
This part of ISO 6721 specifies a bending-vibration method based upon resonance curves for determining the flexural complex modulus E; of homogeneous plastics and the damping properties of laminated...

References

This document references:
ISO 6721-1 - Plastics — Determination of dynamic mechanical properties — Part 1: General principles
Published by ISO on April 1, 2019
The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties of rigid plastics within the region of linear viscoelastic behaviour. This document specifies...
This document references:
ISO 6721-4 - Plastics — Determination of dynamic mechanical properties — Part 4: Tensile vibration — Non-resonance method
Published by ISO on May 1, 2019
This document describes a forced, non-resonance method for determining the components of the tensile complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. NOTE...
This document references:
ISO 1183-1 - Plastics — Methods for determining the density of non-cellular plastics — Part 1: Immersion method, liquid pycnometer method and titration method
Published by ISO on March 1, 2019
This document specifies three methods for the determination of the density of non-cellular plastics in the form of void-free moulded or extruded objects, as well as powders, flakes and granules. —...
This document references:
ISO 1183-2 - Plastics — Methods for determining the density of non-cellular plastics — Part 2: Density gradient column method
Published by ISO on March 1, 2019
This document specifies a gradient column method for the determination of the density of non-cellular moulded or extruded plastics or pellets in void-free form. Density gradient columns are columns...
This document references:
ISO 1183-3 - Plastics - Methods for Determining the Density of Non-Cellular Plastics - Part 3: Gas Pyknometer Method
Published by ISO on September 15, 1999
This part of ISO 1183 specifies a method for the determination of the density or the specific volume of solid non-cellular plastics of any shape which do not contain closed pores.
This document references:
ISO 6721-1 - Plastics — Determination of dynamic mechanical properties — Part 1: General principles
Published by ISO on April 1, 2019
The various parts of ISO 6721 specify methods for the determination of the dynamic mechanical properties of rigid plastics within the region of linear viscoelastic behaviour. This document specifies...
This document references:
ISO 6721-10 - Plastics - Determination of dynamic mechanical properties - Part 10: Complex shear viscosity using a parallel-plate oscillatory rheometer
Published by ISO on September 15, 2015
This part of ISO 6721 specifies the general principles of a method for determining the dynamic rheological properties of polymer melts at angular frequencies typically in the range of 0,01 rad·s-1 to...
This document references:
ISO 6721-4 - Plastics — Determination of dynamic mechanical properties — Part 4: Tensile vibration — Non-resonance method
Published by ISO on May 1, 2019
This document describes a forced, non-resonance method for determining the components of the tensile complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. NOTE...
This document is referenced by:
BS ISO 6721-4 - TC - Tracked Changes (Redline) - Plastics — Determination of dynamic mechanical properties Part 4: Tensile vibration — Non-resonance method
Published by BSI on February 24, 2020
A description is not available for this item.
This document is referenced by:
EN ISO 6721-3 - Plastics - Determination of Dynamic Mechanical Properties - Part 3: Flexural Vibration - Resonance-Curve Method
Published by CEN on March 1, 2021
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...
This document is referenced by:
ISO 4582 - Plastics - Determination of changes in colour and variations in properties after exposure to glass-filtered solar radiation, natural weathering or laboratory radiation sources
Published by ISO on August 1, 2017
This document specifies methods to determine changes in colour and other appearance properties, and variations in mechanical or other properties, of plastics that have been exposed to glass-filtered...
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