If I may throw out this question: What are your best sources for
information on the specific content & safety of art materials? I know about
the Art & Craft Materials Institute, but since they are an association of
manufacturers of art materials I'm not sure that they are unbiased. The
Material Safety Data Sheets which I have received do NOT contain
information on the contents of the products. There is also no explnation of
their numerical health code rating.