ASTM D6997-12 (R2020) PDF Download

The ASTM D6997-12 (R2020) standard provides guidelines for the quantitative determination of residue and oil distillate in emulsified asphalts. This test method can be used for various purposes, including specification acceptance, service evaluation, control, and research. It enables the obtainment of residue and oil distillate for further testing as well.

However, it is important to note that this test method may not be suitable for emulsified asphalts containing latex or polymer. In such cases, specifying agencies may opt to use a lowered distillation temperature, although this may invalidate the precision and bias statement. For emulsified asphalts with latex or polymer content, alternative methods such as Test Method D7403 and Practice D7497, which employ low-temperature techniques, may be more appropriate for obtaining residue.