Been to the hospital, had an X-Ray, translated the data sheets kindly supplied and also took along the blade.
The specialist found nothing, but said that the amount ingested or inhaled would be too small and fine to show up anyway.
The data sheets proved to be of no value for the exact reason that Pontius pointed out.
I have had no reply from the coating specialist at Rockhard despite sending emails.
My lungs have improved a great deal, but whether it is psychological or not, I still feel all is not 100%.
Time will tell. Thanks for the input guys !
El G.