This Part covers the quantitative measure of red lead in paint pigments. The only interference is from zinc chromate, the absence of which must first be ascertained. If the qualitative test described is positive, the zinc chromate must first be quantitatively removed as provided in the procedure.
SS 5 Pt.C3-1987 history
1987SS 5 Pt.C3-1987 Methods Of Test For Paints, Varnishes And Related Materials Part C3: Analysis Of Red Lead In Pigment