SN EN ISO 8256 : 2005

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
   5.1 Test machine
   5.2 Pendulum and striker
   5.3 Crosshead
   5.4 Clamping devices/jaws
   5.5 Micrometers and gauges
6 Test specimens
   6.1 Shape and dimensions
   6.2 Preparation
   6.3 Notching of specimens
   6.4 Number of test specimens
   6.5 Anisotropy
   6.6 Conditioning
7 Procedure
8 Determination of energy corrections
   8.1 Method A - Correction E[q] due to the plastic
       deformation and the kinetic energy of the
       crosshead
   8.2 Method B - Crosshead-bounce energy E[b]
9 Calculation and expression of results
   9.1 Calculation of corrected tensile-impact energy
   9.2 Calculation of tensile-impact strength
   9.3 Statistical parameters
   9.4 Number of significant figures
10 Precision
11 Test report
Annex A (normative) Determination of correction factor
                    for method A
Annex B (normative) Determination of bounce-correction
                    factor for method B
Bibliography

Provides two methods (method A and method B) for the determination of the tensile-impact strength of plastics under defined conditions. These methods are applicable both to specimens prepared from moulding materials and to specimens taken from finished or semi-finished products (for example mouldings, films, laminates, or extruded or cast sheets).