This training manual presents material on the theoretical concepts involved in the methods listed in the Federal Register as approved for determination of trace metals. Emphasis is on laboratory operations. This course is intended for chemists and technicians with little or no experience in analytical methods for trace metals. Students should have basic laboratory skills including use of volumetric glassware and titration assemblies. Topics include sample handling, atomic absorption, spectrophotometry, flame photometry, and techniques for determining various trace metals. (CO)