New Standard from Last Update.

1. Scope

1.1 This test method is applicable for determination of trace elements in petroleum products, namely, crude oil, naphtha, middle distillate, vacuum gas oil, residual fuel oils, vacuum residue, lubricating oils and base oils by inductively coupled plasma optical emission spectrometry (ICP-OES).

1.2 The test procedure covers the determination of Al, As, Ba, B, Ca, Cr, Cu, Fe, Pb, Mg, Mn, Hg, Mo, Ni, P, K, Na, Si, Ag, S, Sn, Ti, V, and Zn in the concentration range 0.1 mg/kg to 10 mg/kg.

NOTE — The specific elements along with the suggested wavelengths are referred in Table1.Other elements also can be determined based on capability of the instrument.