Quality Assurance

TTL, an Independent Testing Laboratory (ITL), meets all the basic requirements of ASTM E329-93b, “Practice for Use in the Evaluation of Testing and Inspection Agencies As Used in Construction”. We are accredited to perform construction materials testing by the American Association of State Highway and Transportation Officials. The Ohio Basic Building Code identifies TTL as an authorized, accredited agency. Additionally, our laboratory is validated by the U. S. Army Corps of Engineers.

Our quality system, audit and review procedures are contained in the TTL Quality Assurance Manual. It meets the criteria of the American National Standards Institute (ANSI) N45.2 (1971) and provides assurance that tests or inspections will be performed in accordance with established and accepted procedures and criteria. This manual also details procedures to ensure TTL performs only tests that we are staffed, equipped and qualified to perform.

TTL is responsible for maintaining an effective quality control system. The quality control system consists of plans, procedures, and organization necessary to produce an end product, which complies with the contract requirements. The system covers all construction operations, both on-site and off-site, and is keyed to each proposed construction sequence.