Impact tests according to ISO 179 / ISO 180

Charpy & Izod Tests
impact
Testing lab
Plastic characterization
Testing standard

ISO 179-1:2010; ISO 180:2010

Principle

The impact resistance test determines the amount of energy absorbed by a material during fracture. This absorbed energy is a measure of a given material’s notch toughness and acts as a tool to study temperature-dependent ductile-brittle transition.

In case of Charpy or Izod, the impact is induced by a pendulum hammer on the sample. The residual energy of the hammer is measured.

Charpy izod drawing

Testing procedure

The impact test is performed on a standardized sample of 80 x 10 x 4 mm, with or without notch. 

The sample is placed in a frame and the pendulum is released.

Testing applications

  • Quality control
  • Determination of the impact resistance of plastics

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