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Norm

ISO 6721-2:2019

Issue date: 2019 04 29

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 ...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 13 Pages
Language:
English

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 temperature, for small deformations within the frequency range from 0,1 Hz to 10 Hz.

NOTE The temperature dependence of these properties, measured over a sufficiently broad range of temperatures (for example from -50 °C to +150 °C for most 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). The methods are not suitable for testing rubbers, for which the user is referred to ISO 4664-2.

ISO 6721-2:2019
2019 04 29
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method
Norm
ISO 6721-2:2008
2008 05 26
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method
Norm
ISO 6721-2:1994/Cor 1:1995
1995 03 16
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method — Techni...
Norm
ISO 6721-2:1994
1994 11 03
Plastics — Determination of dynamic mechanical properties — Part 2: Torsion-pendulum method
Norm
ISO 537:1989
1989 11 30
Plastics — Testing with the torsion pendulum
Norm
ISO 537:1980
1980 03 01
Plastics — Testing with the torsion pendulum
Norm
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