- Many neophyte organizations do not know that how a FSTD is installed and making sure the installed device meets local, national and international standards is as much a part of getting the device qualified as it meeting, say, validation tests. This paper is a review of the requirements and is intended as a refresher for graduates of TTI's FSTD Evaluators Course. It is provided here courtesy of Andy Ramsden, one of TTI's core instructors.