Originally Posted by
Steve Schoene
And, Bob, what column is the 500 ppm datum? It's in the OSHA PEL (permissible exposure limits) column which gives the permissible exposure, averaged over an 8 hour period. You have to go over two columns to see the percentage of the material in the product. I'd say, offhand, that mineral spirits, or petroleum distillates of around 40% qualifies as mineral spirits based. You would have to click on the link--rather than picking up the first number you come to. Scott's paste pretty obviously lost the the columnization on my display.