Midland Asphalt Materials Inc. is now partaking in the AASHTO proficiency sample testing program in addition to the AASHTO accreditation program (AAP). As of December 22, 2008, our laboratory was granted accreditation in the following area:  


Emulsified Asphalt –  

AASHTO : T59 (Saybolt Viscosity 25 C & 50 C, Freezing, Settlement & Storage Stability, Sieve Test, Residue by Evaporation, Cement Mixing, Demulsibility, Determining Density, Residue by Distillation, Aggregate Coating) 

ASTM: D244 (Saybolt Viscosity 25 C & 50 C), D6929, D6930, D6933, D6934, D6935, D6936, D6997, D6998