This test method is intended to measure the effect of heat and air on a moving film of semi-solid asphaltic materials. The effects of this treatment are determined from measurements of the selected properties of the asphalt before and after the test.

Completely made in stainless steel, aluminum carriage rotating at 15 rpm - circular and vertical - with 8 places for glass containers, internal fan controlled by a 1725 rpm motor, copper coil with nozzle pre-heating the air, flowmeter with regulator valve, digital thermoregulator with PID function and probe PT100, double wall locking door with toughned glass window, internal light.

- Temperature: from ambient to 170°C (338°F)
- Stability: ±0.5°C
- Power supply: 220V 50Hz
- Power: 1500W
- Weight: 90 kg