Standard Swedish standard · SS-EN ISO 6721-2:2008

Plastics - Determination of dynamic mechanical properties - Part 2: Torsion-pendulum method (ISO 6721-2:2008)

Status: Withdrawn

· Replaced by: SS-EN ISO 6721-2:2019
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Standard Swedish standard · SS-EN ISO 6721-2:2008

Plastics - Determination of dynamic mechanical properties - Part 2: Torsion-pendulum method (ISO 6721-2:2008)
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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.

Subjects

General (83.080.01)


Buy this standard

Standard Swedish standard · SS-EN ISO 6721-2:2008

Plastics - Determination of dynamic mechanical properties - Part 2: Torsion-pendulum method (ISO 6721-2:2008)
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Price: 1 013 SEK
standard ikon pdf

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Product information

Language: English

Written by: Svenska institutet för standarder

International title:

Article no: STD-66713

Edition: 2

Approved: 6/17/2008

No of pages: 28

Replaces: SS-EN ISO 6721-2

Replaced by: SS-EN ISO 6721-2:2019