Description:Content: Statistical control of measurement processes / Grant Wernimont -- Testing basic assumptions in the measurement process / James J. Filliben -- Systematic error in chemical analysis / L.A. Currie and J.R. Devoe -- Role of reference materials and reference methods in the measurement process / George A. Uriano and J. Paul Cali -- Optimization of experimental parameters in chemical analysis / Stanley N. Deming -- Components of variation in chemical analysis / Raymond C. Rhodes.