Definition of Izod test in English:

Izod test


  • A material strength test in which a notched specimen is broken by a blow from a pendulum, the energy absorbed being determined from the decrease in the swing of the pendulum.

    • ‘Aluminum alloys have no ductile-to-brittle transition; consequently; neither ASTM nor ASME specifications require low-temperature Charpy or Izod tests of aluminum alloys.’
    • ‘There are basically two types of tests, Charpy and Izod tests for evaluation of impact strength.’
    • ‘For Izod tests the pendulum is dropped from the lower position with the auxiliary weights removed.’
    • ‘In the Izod test, the specimen is mounted in a vise in the base, then struck by the pendulum.’
    • ‘The upside-down relationship between MFR and toughness, as measured by the notched Izod test, is apparent.’


Early 20th century named after Edwin G. Izod, the British engineer who devised the test.


Izod test