Flash ignition temperatures of upholstery textiles were measurod with a modified derivatograph, and the TG, DTG, DTA and T curves were also recorded. The results obtained with the newly-developed system were compared with those of the ASTM D 1929 test procedure and with the simultaneously recorded thermal analysis curves.The level and the speed of flame propagation depend primarily on the place where the fire starts and on the features of the materials located close to the flames. Flammable subjects such as curtains, furniture covers, carpets and floor-coverongs help fire in its propagation. If we make textiles flame-retardant by special finishing or we make a correct choice materials, quick flame propagation can be prevented.The following parameters are used to define the flammability of textiles:--

The effects of the experimental conditions (sample size, heating rate, static and dynamic atmosphere) were studied on the value of the flash-ignition temperature "(T/) obtained with a modified derivatograph able to measure T~. simultaneously with the TG, DTG, DTA and T curves. The effects of various parameters are discussed and the optimum conditions determined. T,-for bleached cotton fibre was found to be 270 + l ~ For characterization of the combustion properties of materials, various parameters are employed. These are the ease of ignition, rate of flame propagation, amount of heat evolved in combustion, etc. One of the most important parameters is the ease of ignition, which can be expressed numerically by the value of the limited oxygen index (LOI) [1 ] and the time or temperature of ignition. It is well known that different techniques are available for the measurement of ignition temperature [2,3].Thermal analysis has recently become an important quality and research control method in the study of flammability and flame retardation processes [4][5][6].We have developed a spark-producing attachment for a derivatograph which permits ignition temperature (T/) detection and TG, DTG, DTA and T scans simultaneously [7,8]. A derivatoghraph can be applied for measurement of the above properties. This has to search for the optimum experimental conditions and to evaluate the extent of factors influencing the results obtained by means of complex thermal analysis. The objective of this study is to examine the effects of the experimental conditions on T/. The effects of sample size, heating rate, atmosphere, and rate of air flow are systematically studied. The correlation between TG and DTG signals and Ti values is examined.