Laboratory testing and calibration services are vital not only for the immediate recipient but also for the public potentially affected.

Various factors—sample condition, handling and storage methods, analytical or preparation processes, materials and equipment, involved personnel, and the lab environment—often lead to erroneous or contested results.

Designing and applying specialized quality management and competency systems for the accreditation of testing and calibration laboratories is an invaluable tool for managing every factor influencing results and for documenting technical proficiency.