EN ISO 13968 Ring Flexibility Tester

ISO 13968:2008

Plastics piping and ducting systems — Thermoplastics pipes — Determination of ring flexibility

Measurement has  the same test arrangement as for ring stiffness. The test to ISO 13968 is continued up to failure of the pipe or until deformation of 30% of the pipe outside diameter has occurred. The result of the test is maximum force and deformation values, or force and deformation values at which a damage happens.