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  • BSI
    BS EN ISO 6721-2:2019 Plastics. Determination of dynamic mechanical properties - Torsion-pendulum method
    Edition: 2019
    $313.97
    / user per year

Description of BS EN ISO 6721-2:2019 2019

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.



Standard NumberBS EN ISO 6721-2:2019
TitlePlastics. Determination of dynamic mechanical properties - Torsion-pendulum method
StatusConfirmed
Publication Date2019-06-14
ReplacesBS EN ISO 6721-2:2008
Identical National Standard OfISO 6721-2, EN ISO 6721-2
DescriptorsModulus of elasticity, Torsion pendulums, Polymers, Precision, Torsion testing, Plastics, Test specimens, Error correction, Test equipment, Mathematical calculations, Dynamic testing, Testing conditions, Mechanical properties of materials, Mechanical testing, Plastics and rubber technology, Specimen preparation
ICS83.080.01 Plastics in general
CommitteePRI/21
ISBN978 0 580 97457 1
PublisherBSI
Pages20

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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