ASTM D2764 Standard Test Method for Dimethylformamide-Insoluble (DMF-I) Content of Tar and Pitch
3. Summary of Test Method
3.1 A sample is digested in hot DMF and filtered. Any insoluble matter is washed, dried, and weighed.
4. Significance and Use
4.1 This test method is useful in evaluating and characterizing tars and pitches and as one element in establishing the uniformity of shipments or sources of supply. It is a rapid and reasonably accurate measure of the toluene insoluble (TI) content of tar and pitch Test Method D4072.
