ASTM D6084 describes a method to measure the elastomeric characteristics of a given bituminous material, especially if an ingredient has been added to the compound to enhance its elastic recovery. A material sample is submerged in a controlled water bath and stretched at a determined speed and temperature. The sample is then cut and allowed to rest. After a set period of time has passed, the two halves of the sample are measured to quantify the elastic recovery of the material.
ASTM D6084 is appropriate for testing both aged and unaged samples of bituminous material.