Many of the most widely used chemicals in the U-S haven’t been tested for possible health affects; or if they have, the manufacturers haven’t released the results. But that’s changing. Four months ago, the Environmental Defense Fund went directly to the heads of the top 100 U.S. chemical manufacturers, and asked them to commit to testing the safety of their best selling chemicals by the year 2000. Now the chemical companies are starting to respond according to David Roe, Senior Attorney for the Environmental Defense Fund. The EDF review looked at chemicals that can be found in a wide range of consumer products, from cleaning solvents to liquid fabric softeners.