Rapid Determination of Total Ash in Rubber Stoppers by Thermogravimetric Analysis

A rapid method to determine the total ash content in rubber stoppers is established using thermogravimetric analysis. The effect of different testing conditions on the results is studied as well. The relative standard deviation of the total ash obtained is 0.01% and the experimental time is less than 1h. The repeatability and accuracy of this method have been demonstrated better than that of YBB00262005 and ASTM D6370-99 methods.