Inspection is done by certificated second level specialist (according to LST EN9712). For inspection we use professional MR® 56 Hand Yoke device that meets all EN ISO 9934-3 and ASTM E709 requirements. Weld quality inspection by magnetic particle testing method characterizes with high detection sensitivity of thin and small cracks. This method is used for detection surface and subsurface discontinuities, cracks, slag inserts, disintegration and other defects. MPT method can only be applied to non-painted surfaces. After the inspection MPT protocol is provided.