Nondestructive testing

English abbreviation NDT, German abbreviation ZfP, also known as nondestructive examination (NDE). It is a procedure which tests components, materials and constructions before and during their operation for hidden faults and in doing so makes a big contribution towards PREVENTING accidents and catastrophes from happening. Since humans have been able to process materials and workpieces they have been driven by the desire to be able to test them without destroying them, i.e. testing them in a way that they can still be used after having been tested. As early as in primeval times humans have used nondestructive test procedures by critically eyeing manufactured objects, tapping them with their knuckles, feeling surfaces with their fingertips. But this technique only became an important economic factor much later when in the middle of the nineteenth century industry wanted to save material for the first time and simultaneously had to keep in line with the increased safety requirements. At this time, more specialised procedures of practical material inspection were being introduced which were occupied by the term ‘nondestructive material testing’. Nowadays, NDT has become an irreplaceable instrument for quality control and assurance in all branches of industry. Every security relevant part is inspected. In so doing, NDT uses physical measurement techniques – always on the condition that the introduced energy is not allowed to change the material to be tested. The methods applied are diverse in nature: Visual inspections, X-ray and ultra-sound procedures, thermographic heat flow testing procedures, computer tomography, video- and endoscopy, laser radiation, eddy-current test – depending on the particular test one will choose the form of energy which, according to the interaction energy, will result in a signal as high as possible. Being a manufacturer of pressure equipment STRIKO process technology of course satisfies the requirements of the applicable regulations. STRIKO heat exchangers and static mixers, all of them pass through the nondestructive testing according to the selected technical regulation.