GT 1200 tests the characteristic opening size of geotextiles by means of a sieving machine, a water flow device and predefined sand. By analysing the size of the sand grains passing through the material, the opening size can be determined.
Objective results
Reproducible and objective measurement results are assured by the automated testing procedure and the standardized handling.
Reliable measurement method
The characteristic opening size is determined using a coordinated and standardized system consisting of a sieving machine, wetting device and standardized analysis tools - ensuring consistent and comparable test results.
User-friendly operation
The GT 1200 combines all necessary testing steps into one automated process, enabling efficient use and minimizing operator influence.
EN ISO 12956, ASTM D4751, ASTM D6767
