In the fast-changing Non-Destructive Testing (NDT) industry, Standard Test Blocks serve the very important purpose of standardizing and calibrating test equipment to ensure that it is functioning properly. These blocks are non-representative tools, meaning that they are not manufactured from, or machined to represent, actual parts. Rather, they consist of simplified design and contain manufactured targets such as side-drilled holes, flat bottom holes, angles, radii, steps and other geometric features.
