Standards
l ISO 179 Part 1 (non-instrumented impact test).
Application
Charpy pendulum impact tester is used to conduct resilience tests on rigid plastic materials in order to determine their impact fragility characteristics under standard stress conditions. The test method conforms to ISO 179 - Part 1 (non-instrumented impact test).
The sample, supported near its ends as a horizontal beam, is impacted by a single blow of a striker, with the line of impact midway between the supports, and bent at a high, nominally constant, velocity.
Izod method is used to investigate the behavior of specified types of specimen under impact conditions defined and for estimating the brittleness or toughess of specimens within the limitations inherent in the test conditions.
The test specimen, supported as a vertical cantilever beam, is broken by a single impact of a striker, with the line of impact a fixed distance from the specimen clamp and, in the case of notched specimens, from the centerline of the notch.
Features
l Impact speeds of 2.9m/s & 3.8m/s as well as multiple impact energies can be generated by one pendulum.
l High mass, traditional pendulum design concentrates energy at the impact point with minimal energy loss due to vibration.
l The electrics contain a high-resolution encoder for accurate measurement of the impact angel.
l Touch screen control for quick and easy input of parameters
l Results are automatically corrected for energy loss due to air and mechanical friction.
Technical Parameters
Energy levels (max capacity): 1J, 2J, 4J and 5J (Model: CIT-5) / 15J, 25J, 50J (Model: CIT-50)
Span of Charpy: 62mm
Charpy testing impact speed: 2.9 m/s (Model: CIT-5); 3.8m/s (Model: CIT-50)
Izod Energy levels (max capacity): 5.5J, 11J and 22J
Izod testing impact speed: 3.5m/s
Measurement resolution: 0.01J
Measurement resolution: 0.01J
Notch A: 45º±1º Radius of the notch bottom, R=0.25±0.05mm
Notch B: 45º±1º Radius of the notch bottom, R=1±0.05m
Notch C: 45º±1º Radius of the notch bottom, R=0.10±0.02mm
