ISO 179-1 defines the method used to determine the resistance of plastic to breaking when impacted in a three point bend configuration, using a pendulum system with an appropriately sized hammer arm. The test is uninstrumented and is used to determine the energy required to break the specimen. Different test parameters are specified according to the type of material that the specimen is made of as well as the type of notch cut in it. While similar to ASTM D6110 (Charpy Impact Resistance of Notched Plastic Specimens) the defined tests are significantly different and are therefore not interchangeable.
To meet the requirements of the standard we recommend our CEAST 9050 Pendulum – in either manual or motorized version, along with a specimen support vise, properly sized shoulders, and impact hammers. To get a full understanding of how the material will react to impact when exposed to sub-ambient temperatures we also recommend the inclusion of our Cryo Dispenser.
For specimen preparation we suggest the use of either our Motorized Notchvis or Automatic notcher, which together with the correct knife will allow the user to notch their samples correctly, according to the test standard.
To fully understand the test set-up, procedure, results and specimen preparation requirements, please refer to the standard which is available from the link below.