UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing..

An error occurred while processing the form. Please try again in a few minutes.

ISO 6721-2

Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method

inactive
Buy Now
Organization: ISO
Publication Date: 1 June 2008
Status: inactive
Page Count: 20
ICS Code (Plastics in general): 83.080.01
scope:

This part of ISO 6721 specifies two methods (A and B) for determining the linear dynamic mechanical properties of plastics, i.e. the storage and loss components of the torsional modulus, as a function of temperature, for small deformations within the frequency range from 0,1 Hz to 10 Hz.

The temperature dependence of these properties, measured over a sufficiently broad range of temperatures (for example from −50 °C to +150 °C for the majority of commercially available plastics), gives information on the transition regions (for example the glass transition and the melting transition) of the polymer. It also provides information concerning the onset of plastic flow. The two methods described are not applicable to non-symmetrical laminates (see ISO 6721-3, Plastics - Determination of dynamic mechanical properties - Part 3: Flexural vibration - Resonance-curve method). The methods are not suitable for testing rubbers, for which the user is referred to ISO 4664-2, Rubber, vulcanized or thermoplastic - Determination of dynamic properties - Part 2: Torsion pendulum methods at low frequencies.

Document History

April 1, 2019
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method
This document specifies two methods (A and B) for determining the linear dynamic mechanical properties of plastics, i.e. the storage and loss components of the torsional modulus, as a function of...
ISO 6721-2
June 1, 2008
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method
This part of ISO 6721 specifies two methods (A and B) for determining the linear dynamic mechanical properties of plastics, i.e. the storage and loss components of the torsional modulus, as a...
November 1, 1994
Plastics - Determination of Dynamic Mechanical Properties - Part 2: Torsion-Pendulum Method
A description is not available for this item.

References

Advertisement