The AAF-BAL thermogravimetric analysis (TGA) furnace incorporates an integral balance. It can be used for loss on ignition applications where weight change of the sample must be monitored during the heating process. The AAF-BAL ashing furnace is fitted with an integral balance and can be used for loss on ignition (LOI) applications. Weight change of the sample is monitored during the heating process and this is required, for example, in the determination of organic matter content in materials such as sediment, sludge, soil and waste. Inorganic materials such as cement, lime, calcinated bauxite and refractories can also be tested.