1. Official Methods of Analysis, Association of Official Analytical Chemists, 15th Ed., Arlington, VA, 1990, sec. 973.32.
2. Fed. Regist. (July 6, 1992) 57 (129), 29734.
3. “Pottery (Ceramics); Imported and Domestic — Lead Contamination,” Food and Drug Administration Compliance Policy Guide, FDA, Washington, DC, 1992, sec. 7117.07.
4. “Pottery (Ceramics); Imported and Domestic — Cadmium Contamination,” Food and Drug Administration Compliance Policy Guide, FDA, Washington, DC, 1988, sec, 7117.06.
5. D.L. ANDERSON, W.C. CUNNINGHAM, T. R.LINDSTROM, J. AOAC Int., in press (1995).