Many years ago…maybe decades ago…Usenet groups were the place for discussion. In one of the climbing groups, we were discussing the safety of using biners that had been dropped on hard surfaces like concrete. As the debate raged on, I reached out to SMC and asked them if they had any data that they could share. They sent me the PDF attached below.
Recently, I was cleaning up my local NAS and stumbled upon the PDF. I figured I would share it out on the Interwebs, before I purged it from my local drive.