THE CHEMICAL ANALYSIS OF CONCRETE FOR PORTland cement content was covered by H. F. Kriege in the first edition of ASTM STP 169. Dr. L. John Minnick provided an excellent discussion of methods of analysis for portland cement content in ASTM 169A. The present writer extended the discussions in ASTM 169B and ASTM 169C to include analytical methods for other concrete components, and broadened the title from the “Cement Content” of the first two editions. This chapter in ASTM 169D extends analytical developments to the twenty-first century.