Non-destructive testing, commonly abbreviated NDT is simply defined as the testing of materials for surface or internal flaws without causing any destruction or harm to the material under test.
Non-destructive testing is a career field that is relatively obscure in the minds of the general public.
The name seems totally self-explanatory, but most NDT professionals can definitely relate to the experience of trying to explain what non-destructive testing means to family members, friends and acquaintances.
Most students when considering career options are completely unaware that NDT is a very exciting and rewarding career field. `Career’ being the important word.
Every bit of knowledge acquired during training, experience and certification has to be productively put to use and most importantly the learning process never ends.
The NDT process relies on the careful approach of the technician, his dedication, thoroughness, perseverance and the usage of sound work procedures referencing codes and specifications.
As a fundamental part of the engineering, manufacturing and in-service process, NDT utilises the human senses of sight, touch and hearing, amplified by a broad selection of equipment and apparatus to interpret and evaluate materials. NDT is the most widely used chemical and physical inspection method to investigate the composition of materials by means of sound waves, electrical currents, X- and Gamma rays, magnetic fields, thermal waves and tracer liquids directed into and in most cases , penetrating the materials under test.
NDT is particularly effective at locating performance degrading conditions such as cracking, voids, inclusions, unbonded surfaces, incorrect assembly, incorrect dimension, wall thinning, porosity, incorrect coating thickness, poorly welded fabrications, defects in castings, forgings, rolled products and defects in a host of unlimited manufacturing processes.
Essentially, Non-destructive testing assists in the detection and characterisation of material deficiencies without inhibiting the parts usefulness in any way.
I see discontinuities...
‘NASA a company with a strong NDT present and a strong NDT future.’
The Non-Destructive Academy of South Africa was founded in January of 2008. As we at NASA proceed in all our efforts, with unequivocal excellence, I aim to change that opening statement, in time to include, ‘A strong NDT Past’.
As a persevering student of NDT myself I knew from the outset of my career in NDT, eight years prior to the establishment of NASA, that there was a need for a NDT training facility in my hometown Durban South Africa. Nothing quite got my blood pumping through the years as an entire NDT company that would lose a contract due to low standards of quality, only to be replaced by another NDT company that would utilize the exact same personnel. To an extent the management is responsible, but I believe a company can only be as strong as its weakest link. To this I proposed to many recognized and established members of the NDT community, that emphasis should be placed on the personnel at all levels of NDT, as the individual’s that determines the fortitude of the company’s knowledge. To address this self perceived analysis I embarked on a mission to change and raise the quality of NDT personnel one student at a time. The establishment of a new training institute in the formation of the Non-Destructive Academy of South Africa enables us to utilize our diversified experience, special skills and knowledge to contribute to the favorable performance and welfare of all our students, and the companies they represent, by the establishment of sound procedures for the training and certification of NDT personnel throughout South Africa.
That is the quintessential aim of NASA, to be the key strategic training influence, to raise the bar on the quality of NDT personnel of South Africa.
Our philosophy is to continually provide thorough and attentitive service to our clients bringing the utmost level of integrity to our training efforts and to strive to maintain our knowledgeable position in the ever-changing NDT world. NASA shall remain productive and always be a contender, employing good work ethics as a foundation for success.
As the founder of the Academy I shall endeavour to instill the highest quality in all aspects of the company. As an independent training facility NASA possess the flexibility to tailor programs to meet the client’s needs. We shall be of assistance to you, and shall be continually asking ourselves, how can we advantageously improve?
Supporting the NASA training facility, a Certification Committee has been established employing the experience, skills and knowledge of NDT Level III’s and appropriately experienced members of the NDT community in South Africa and around the world. The Non-Destructive Academy of South Africa Certification Committee (NASACC) exists as an independent body and has no involvement in the training of students.
With the establishment of the NASACC in compliance with ISO 9712 3rd Edition, BS EN 473 and SNT-TC-1A the prime objective in the very near future is to invite and incorporate all other NDT training facilities and Qualifying bodies in South Africa to work together to establish technical harmonisation of NDT certification. This would inspire greater confidence in the resulting certification which will facilitate mutual recognition and worldwide acceptance of the national NDT certificates issued in South Africa.
At NASA and the NASACC we believe in having total transparency in our training and certification program, and openly welcome any form of official Audit by any, and all interested parties of the NDT related community at any time. With pride and dynamism we aspire to become the pre-eminent NDT training facility in South Africa. When we become aware of what is possible we begin to realise that success can be achieved, that challenges can be conquered and that problems can be solved. In doing so we open up a completely new set of avenues and possibilities, for ourselves and you.
Albert Einstein said, ‘Imagination is more powerful than knowledge.’ I believe that this is true in many respects because while knowledge allows you to see things as they are, imagination allows you to see things as they could be.
Having said that I shall leave you with the official motto of our country… South Africa, alive with possibility.