At 06:48 PM 11/18/97 +0000, you wrote: >SAE J1832 recommends N-hexane, which might be hard to obtain. Follow along with me: *grin* Find Yellow Pages.. Look up Chemicals Call up one of the bigger co's. Ask for N-Hexane Technical Grade is cheaper an ACS (American Chem. Soc.) reagent grade is not needed and will be MUCH more money.. Jim