What test procedures are defined by ASTM D1187 for asphalt emulsion evaluation?

ASTM D1187 is commonly used for evaluating residue content of emulsified asphalts by distillation, helping quantify how much actual asphalt binder remains after water is removed. This is critical for specifying and paying by residual binder rather than total delivered liquid. The procedure defines apparatus setup, heating and collection conditions, and how to calculate residue. Results are used alongside other tests like viscosity and sieve to confirm the emulsion meets grade requirements and to support application rate calculations that target a specific residual asphalt coverage on the surface.