I think you are thinking of the lick test Mr. Fogarty.
Also works for electrical conductivity testing.:roll:
:mrgreen::mrgreen::mrgreen:
looks like stains from other materials found on a job site. The 2x6s may have even been slab edge forms in their previous life.
It looks similar to what I noticed on a 10 year old home. Can this be mold? any comments?
https://picasaweb.google.com/lh/photo/NXn-EI0k2rvRnO_9_uVeJNMTjNZETYmyPJy0liipFm0?feat=directlink
https://picasaweb.google.com/lh/photo/eHC9bdX59tgc7tQN-8JYj9MTjNZETYmyPJy0liipFm0?feat=directlink
https://picasaweb.google.com/lh/photo/eHC9bdX59tgc7tQN-8JYj9MTjNZETYmyPJy0liipFm0?feat=directlink