Melamine , cyanuric acid not of concern in levels below 1,000 parts per billion . Official says FDA has tested 74 samples of U.S.-made baby formula . `` Amounts of the industrial chemical melamine or the melamine-like compound called cyanuric acid that are below 1.0 ppm [ 1,000 parts per billion ] do not raise public health concerns , '' said Stephen Sundlof , the FDA 's director of the Center for Food Safety and Applied Nutrition . Some samples tested positive but at safe levels , official says . Comment:
Melamine , cyanuric acid not of concern in levels below 1,000 parts per billion . Official says FDA has tested 74 samples of U.S.-made baby formula . Some samples tested positive but at safe levels , official says . Comment: