ASTM C138 Accredited Testing Labs in United States
22 laboratories in United States are accredited by A2LA under ISO/IEC 17025 to perform ASTM C138 testing. These labs commonly handle Concrete, Aggregates, Drinking water matrices. Most frequently tested analytes via this method in United States: Compressive Strength, Density. From the accredited scope text: “ASTM C138/C138M1 Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete ASTM C143/C143M1 Slump of Hydraulic-Cement Concrete ASTM C172/C172M1 Sampling Freshly Mixed Concrete ASTM C174/” “ASTM C138/C138M1 Density (Unit Weight), Yield, and Air Content (Gravimetric) of Concrete”
This page is a fixed slice of the register: every ASTM C138 scope we hold for United States. Search narrows it further by city, accreditation body, or a term from the scope text itself.
ISO/IEC 17025 is the international standard for the competence of testing and calibration laboratories. Accreditation to this standard provides independent confirmation that a laboratory operates a quality management system and is technically competent to produce valid results within its declared scope.