Rotationally Moulded Polyethylene Water Tanks now require to have Drop Dart Impact Test compliance in Australia as per Australian Standard AS4766.
This standard specifies requirements for the design and manufacture of polyethylene tanks that are rotationally moulded. It ensures the secure storage of water and other liquids. It ensures that the performance and workmanship of the finished tank is adequate for its intended application. The dart impact test at -40°C produces a value that is used as an indication of the quality of the tank that has been manufactured.