If you¹re seeking support for safety or health improvements at school, perhaps this might help: http://www.usatoday.com/tech/science/story/2011-10-19/college-lab-safety-che mistry/50818666/1 sjs -- Stephen J. Stepenuck, Ph.D. Professor of chemistry emeritus Keene State College Keene NH 03435-2001 sstepenuck@xxxxxxxxx 603.352.7540