SN EN ISO 6721-2 : 2008

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)

ALSO NUMBERED AS BS 2782 PART 3 METHOD 342B 1996 Specifies two methods for determining the linear dynamic mechanical properties of plastics. Gives information on the transition regions of the polymer. Also gives information about the onset of plastic flow.