This was originally the home site for the New Zealand Non Destructive Testing Association, and contained an introduction to Non Destructive Testing, tutorials on Non Destructive Testing Techniques, copies of papers I wrote on Acoustic Emission in relation to PVDF, carbon fibre and glass reinforced composites, and other materials.

The NDTA no longer use this site , so please change any bookmarks, links etc.

If you wish to specifically access content formerly hosted here please me winzurf(at)

The two NDTA animations below are frequently requested, feel free to download them if you wish.

Feel free to make a donation if you do use these.