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The formation meeting of the task group on Compositional Analysis by Thermogravimetry, under ASTM Committee E 37 on Thermal Measurements was held 30 Oct. 1980. That meeting created a document detailing a test method recently voted on and accepted by ASTM. It will be published as Standard Method E 1131.
The test method outlines a general technique for the analysis of materials by measuring mass loss through several thermal stability ranges. The determination of components based on their volatility provides a compositional analysis by using an inert atmosphere for a portion of the analysis of carbon containing materials and mixtures.
This paper describes the test method and its development to date. Data will be provided from the interlaboratory studies conducted to determine the method's precision and accuracy. In addition, a discussion of the method's application is given.
compositional analysis, thermogravimetry (TG), test method
Senior chemist, Detroit Diesel Corporation, Detroit, MI