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BSI BS 2782-3:Method 323B:1996

Methods of testing plastics -- Mechanical properties
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BSI BS 2782-3:Method 323B:1996

Methods of testing plastics -- Mechanical properties

PUBLISH DATE 2007
PAGES 16
BSI BS 2782-3:Method 323B:1996

This part of ISO 6721 describes a flexural, non-resonance method for determining the components of the Young’s complex modulus E* of polymers at frequencies typically in the range 0,01 Hz to 100 Hz. !Higher-frequency measurements can be made, but significant errors may be obtained in the dynamic properties measured (see 10.2.1 and 10.2.2).' The method is suitable for measuring dynamic storage moduli in the range 10 MPa to 200 GPa. Although materials with moduli less than 10 MPa may be studied, more accurate measurements of their dynamic properties can be made using shear modes of deformation (see part 6 of ISO 6721).

This method is particularly suited to the measurement of loss factors greater than 0,1 and may therefore be conveniently used to study the variation of dynamic properties with temperature and frequency through most of the glass-rubber relaxation region (see ISO 6721-1:1994, subclause 9.4). The availability of data determined over wide ranges of both frequency and temperature enables master plots to be derived, using frequency/temperature shift procedures, which present dynamic properties over an extended frequency range at different temperatures.

SDO BSI: British Standards Institution
Document Number 2782-3:Method 323B
Publication Date March 30, 2007
Language en - English
Page Count 16
Revision Level
Supercedes
Committee PRI/21
Publish Date Document Id Type View
March 30, 2007 BS 2782-3:Method 323B:1996 Consolidated