1.1 These test methods cover the chemical analysis of graphite. 1.2 The analytical procedures appear in the following order: Sections Silicon by the Molybdenum Blue (Colorimetric) Test Method8 to 14Iron by the o-Phenanthroline (Colorimetric) Test Method 15 to 21 Calcium by the Permanganate (Colorimetric) Test Method22 to 28 Aluminum by the 2-Qu