Short Range Ultrasonic Technique (SRUT) was designed mainly to test the Annular Plate of Above Ground Storage Tanks (AST’s) while the tank remains in-service, finding out Corrosion Under Pipe Supports, corrosion at soil air interfaces, and similar difficult to access locations.  The technique is based on the

Short Range Ultrasonic Testing of Critical Zone One In Aboveground Storage Tanks  Above Ground Storage Tank (AGST) bottom consists of two separate sections, the central portion (referred to as bottom plate) and also a Sketch Plate or an Annular Plate. The bottom plate is like a membrane

SRUT examination of the annular ring was conducted at 8 equally spaced locations around the circumference of the tank. Each scan was of 1 m in length around the circumference and extended circa 0.8 m into the tank. In addition to this full scanning of annular plates