In addition to our main offices, Rii maintains laboratories at the Columbus, Cleveland, and Cincinnati, Ohio, offices, which contain a majority of the latest equipment for asphalt, concrete and soil testing. Equipment is calibrated annually, and, to comply with the requirements of ASTM E-329, is inspected and certified by the CCRL and AASHTO.
Rii complies with the requirements of ASTM D-3666, D3740 and C-1077, and participates in proficiency sample programs for asphalt, concrete and soils.
Information regarding our three laboratories, including their respective accreditations, can be viewed online here:
Department of Commerce’s National Voluntary Laboratory Accreditation Program
Rii participates in the AASHTO AMRL and CCRL accreditation programs that are also administered by NIST inspectors in lieu of the NVLAP program. The AASHTO certification also includes a proficiency testing program that is not part of the NVLAP.