Plastic manufacturers are required to provide, whether or not at the request of their customers, answers to questions such as:

  • When does my plastic material become brittle and when is it ductile?
  • How do I compare the suitability of plastics in practice?
  • How does my material behave under extreme temperatures?
  • What is the resistance of my plastic to a sudden impact?

A tensile impact test is a good measure for determining, among other things, the plastics resistance to an impact and for determining the transition temperature between brittle and ductile behavior. A tensile impact test in accordance to the standards ASTM D1822 or ISO 8256 by Kiwa experts can therefore be decisive in determining the suitability of plastics for a particular application.

Damage investigation

It can also be very important to determine whether a material is brittle or ductile when investigating damage after a fracture. In addition, the transition temperature says a lot about the quality of the material. Different materials can be compared in this way in an objective and quantitative way. Kiwa has a great deal of expertise in the field of tensile impact tests and has a special test setup to perform these.

Why tensile impact tests by Kiwa?

  • In Kiwa's test setup, test specimens can be tested at a temperature of -25 ˚C to +47.5 ˚C. This way of working is accurate and fast!
  • Tensile impact tests are interesting for suppliers of new materials or producers of plastic products. This method is also used to determine and compare the residual quality of removed pipe materials.
  • Kiwa has its own workshop where, if desired, we can press plates from granulate and/or make the test specimens in any desired shape on our CNC milling machine. It is also possible to make specimens from semi-finished or end products, such as a pipe or injection molded product.
  • With our test results, materials can be compared with each other and an estimate can be made of the residual quality of plastics.
  • All measurements are presented in  a report describing the test method, the test results and an analysis.
  • The tensile impact test is described in the standards ASTM D1822 ‘Standard test method for Tensile-Impact Energy to Break Plastics and Electrical Insulating Materials’ and the ISO 8256 ‘Plastics - determination of tensile-impact strength’.

More information

Would you like to know more about tensile impact testing by Kiwa and what the added value can be for your organisation? Our experts are happy to tell you more about it! Contact us via the contact form or call us on +31 88 9983521.