TEAM NDT has the capabilities to produce calibration masters for ductile iron castings that are used to verify the proper setup and operation of production line ultrasonic equipment. These masters are produced using customer supplied castings. Acceptable masters are generally painted yellow and have a brass tag affixed to them indicating the calibration velocity and calibration thickness in the test areas. Reject masters are generally painted red and have a brass tag affixed to them indicating the calibration velocity. Units on the tags can be in English units (inches/usec and inches) or in Metric units (meters /sec and millimeters). Certifications supplied with all masters.