UNI EN 658-1 : 1999

1 Scope
2 Normative references
3 Principle
4 Definitions and symbols
    4.1 calibrated length L
    4.2 gauge length, Lo
    4.3 initial cross section area Ao
    4.4 longitudinal deformation, deltaL
    4.5 tensile strain, e
    4.6 tensile stress
    4.7 maximum tensile force, Ft,m
    4.8 tensile strength
    4.9 proportional limit stress
    4.10 proportionality ratio or pseudo-elastic modulus
          Ep, elastic modulus, E
    4.11 cumulative damage energy
    4.12 axial strain
    4.13 bending strain
    4.14 percent bending
5 Apparatus
    5.1 Test machine
    5.2 Load train
    5.3 Strain measurement
    5.4 Data recording system
    5.5 Micrometers
6 Test specimens
7 Test specimen preparation
    7.1 Machining and preparation
    7.2 Number of test specimens
8 Test procedure
    8.1 Displacement rate
    8.2 Measurement of test specimen dimensions
    8.3 Testing technique
    8.4 Test validity
9 Calculation of results
    9.1 Test specimen origin
    9.2 Tensile strength
    9.3 Tensile strain at maximum tensile force
    9.4 Proportionality ratio or pseudo-elastic modulus
          elastic modulus
    9.5 Cumulative damage energy
10 Test report