The International Precious Metals Institute (IPMI) just released its fifth and final video on precious metals sampling and analysis. The list of videos was already contained in an earlier blog. You can see them all here, or you can go straight to YouTube and watch their latest only.
These videos were produced by Tom Bannos in collaboration and with contributions from many IPMI member companies. I like them because they are balanced enough to be interesting for a technical audience as well as for people with a general interest only. Strongly recommended viewing for anyone in the business.