ASTM D4072

Toluene-Insoluble (TI) Content of Tar and Pitch

Applicability: ASTM D4072 is applicable to the determination of the toluene-insoluble (TI) content of tar and pitch. This standard test method is used to evaluate and characterize tars and pitches, assess the uniformity of shipments, and establish quality control. Its applicability is specific to these materials and the analysis of their solubility in hot toluene, following a strict procedure.

Purpose: The purpose of ASTM D4072 is to provide a standard test method for determining the toluene-insoluble (TI) content of tar and pitch. This evaluation is used for characterizing these materials and as a tool to establish the uniformity of shipments or sources of supply.