AIR OVER LAYER TEST

About AIR OVER LAYER TEST

The air over layer test is conducted to establish the onset temperature of exothermic activity of thin layers of material when exposed to elevated atmospheric temperatures. It replicates thin layer (up to 15 mm) deposits in any drying situation i.e. drier walls and roof where hot air rushes over its surface.
Using a small tray test cell, the sample is placed inside the cell and thermocouples placed into the material at three locations. This assembly is placed into a digitally controlled, horizontal, laboratory tube oven with controlled heated air supply and either of the following tests performed using a data acquisition system to monitor, detect and record any exothermic activity.

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AIR OVER LAYER TEST

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