Storage tank leak detection using our mass measurement system is less costly and safer than conventional leak testing methods, and more precise. Aboveground vertical tank testing, leak measurement, tank tightness certification, API 653 certification are necessary steps in maintaining your productivity, protecting the environment, and maintaining safety. Our mass measurement system for leak detection eliminates guesswork and avoids tank entry that is required with other leak testing technologies. mass tightness testing is a precision measurement that overcomes problems of tank content expansion/contraction.