NBN EN ISO 6721-2 : 2008
Current
The latest, up-to-date edition.
PLASTICS - DETERMINATION OF DYNAMIC MECHANICAL PROPERTIES - PART 2: TORSION-PENDULUM METHOD
12-01-2013
Committees responsible
National foreword
Foreword
Method
1 Scope
2 Normative reference
3 Definitions
4 Principle
5 Test apparatus
6 Test specimens
7 Number of specimens
8 Conditioning
9 Procedure
10 Expression of results
11 Precision
12 Test report
Annexes
A (normative) Influence of longitudinal force W
B (informative) Damping correction factor Fd
C (informative) Dimensional correction factor Fc
D (informative) Bibliography
Figures
1 Apparatus for method A
2 Apparatus for method B
3 Amplitude X versus line t for damped vibrations
showing a baseline shift
C.1 Relative error Fc/Fc involved in calculating the
dimensional correction factor Fc using the
approximate equations (2), (3) and (C.2) rather than
the exact equation (C.1)
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