1.1These test methods cover the chemical analysis of graphite.

1.2The analytical procedures appear in the following order:

	Sections
Silicon by the Molybdenum Blue (Colorimetric) Test Method	8 to 14
Iron by the o-Phenanthroline (Colorimetric) Test Method	15 to 21
Calcium by the Permanganate (Colorimetric) Test Method	22 to 28
Aluminum by the 2-Quinizarin Sulfonic Acid Test Method	29 to 35
Titanium by the Peroxide (Colorimetric) Test Method	36 to 43
Vanadium by the 3,3′-Dimethylnaphthidine (Colorimetric) Test Method	44 to 51
Boron by the Curcumin-Oxalic Acid (Colorimetric) Test Method	52 to 59

1.3The preferred concentration of sought element in the final solution, the limits of sensitivity, and the precision of the results are given in Table 1.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See 56.1 for specific caution statement.