Brittleness Tester, ET 05-II

Elastocon Brittleness Tester, ET 05-II, for automatic determination of Brittleness point according to ISO 812, ISO 974, ASTM D746 and ASTM D2137.

The purchase includes the instrument, a software for the Brittleness test and a computer. The test rig is raised by pneumatic cylinders, which require an air supply of 6 Bar.

The brittleness tester is designed as a falling weight tester, where the speed is set by the height and the energy by the attached weights.

The computer controls the temperature rise and measures the temperature at impact. The result from each stroke is entered by typing the result in the software.

The speed is measured after the impact, to verify the speed loss during impact.

We recommend the automatic cooling system with liquid nitrogen that can be supplied. Another useful option is
the ET 04 freezer for precooling of the cooling media (usually ethanol), during nights or other times when the instrument
is not in use. If the cooling media is pre-cooled, the amount of liquid nitrogen necessary to start the test will decrease remarkably.


The Brittleness Tester performs well inside the apparatus requirements in ISO 812, ISO 974, ASTM D746 and ASTM D2137.

Temperature control

  • Temperature range: -80 °C to +20 °C
  • Accuracy: ± 0,5 °C
  • Resolution: ± 0,1 °C
  • Sensor: Pt 100, 1/3 DIN

Speed measurement

  • Indicators: digital encoder
  • Resolution: 0,01 m/s

Important specifications

  • The rig is raised with the help of a pneumatic cylinder
  • Temperature controller with 0,1 °C setpoint and RS232 interface
  • Solid state relay for safe control
  • Temperature sensor close to the samples
  • Run-time meter (PLC)
  • The casing consists of steel, painted with epoxy paint

Included accessories with ET 05-II

  • Computer (Windows)
  • EC 12 software for the Brittleness test
  • Support agreement 12 months
  • Manual in English
  • Necessary tools (e.g. stylus pen for PLC touch screen)
  • Accredited calibration including certificate

Options for ET 05-II

  • Sample holder for ISO 974
  • ET 01.02 – Automatic cooling with liquid nitrogen
  • ET 04 – Ultra low temperature freezer -85 °C
  • EA 01 – Silent air compressor, 105 l/min – Read more about EA 01 here

More information

Download product brochure: Elastocon Low Temperature Testers.pdf

Watch our video about the Brittleness Tester