EXPLANATION
The presence and concentration of various metallic elements in a petroleum coke are major factors in the suitability of the coke for various uses. This test method can be used by the buyer and seller in the commercial transfer of petroleum coke to determine whether that lot of coke meets the specifications of the purchaser. This method can analyze raw and calcined coke for trace elements aluminum, calcium, iron, nickel, silicon, sodium, and vanadium. See complementary ICP-AES method for the same analysis for Test Method D5600 that follows this test method analysis.
TEST SUMMARY
A sample of petroleum coke is ashed at 700° C. The ash is fused with lithium borate. The melt is dissolved in dilute hydrochloric acid, and the resultant solution is analyzed by ICP-AES using aqueous calibration standards.
TEST PRECISION
NOTE - X = the average value of two results in mg/kg.
The bias for this test method has not been determined.