Interstate Testing Services

Interstate Testing Services is a premier independent asphalt testing and materials laboratory based in St. Louis, Missouri that provides quality control, binder testing, emulsion testing, performance testing, mix design, consulting, and education & training for asphalt and construction materials. Interstate Testing Services operates a fully outfitted, state-of-the-art lab staffed by certified professionals with more than 100 years of combined experience, holds AASHTO participation and accreditations such as R-18 and ASTM D-3666, and focuses on reliable, accurate, and on-time results to help clients design mixes, verify field and plant performance, ensure contract compliance, and solve technical pavement challenges.