A novel method has been developed to perform evolved gas analysis using the Perkin-Elmer TGA7 HT. A gas sampling tube was fitted to the sample purge assembly with its tip 1 mm above the sample pan. With the gas outlet of the furnace closed, any evolved gases are swept by the carrier gas through the tube into a sample tube for later analysis. This method alleviates the problem of the large "dead volume" involved when using the normal gas outlet points of the furnace tubes.