Need advice for safely cleaning Jewelry Factory

[redrobin]

The testing came back as karat readings? Are these meltable filings? I have seen cleanups where ducting was lined with fine filing dust which was meltable. I would expect the reading to come back as a lower percentage as gold nothing as high as even 6 karat.

As far as burning goes I have seen brushes and wheels burned in these cans and the burned materials still assayed as high as the same type material burned in an incinerator. http://www.elastec.com/portableincinerators/smartash/

Wood flooring would also burn well in these.

The samples were unburned and just as found. So I guess what that means in the example of the hood sample, is that of all the metal in sample it's 58 percent gold. The low one was from the floor. I brought another from the hall which didn't read because I guess it had too much regular dust or something. The floor is concrete but I have removed some of the tile and base molding. I will check out the incinerator, thanks.