Ultratest is the leading specialist in ultrasonic, magnetic particle and liquid penetrant inspections on a wide range of materials and products.
Macroscopic examination is a destructive method of testing weld samples to the relevant welding procedure specifications to determine whether the welder is qualified and appropriately trained and tested for the specific welding task. The welded test sample will be welded to the procedure developed for the specific task to ensure a system for quality control during welding.
The test sample will be cut through the weld, polished and etched using an approved method and etching solution.
The test sample shall be examined visually and if necessary with magnifying equipment.

Below is an example photograph taken of a prepared specimen: