
ASTM International - ASTM C25-11 - Standard Test …
ASTM D6376-99 - Standard Test Method for Determination of Trace Metals in Petroleum Coke by Wavelength Dispersive X-Ray Fluorescence Spectroscopy January 10, 1999 - ASTM International 1.1 This test method covers the X-ray fluorescence spectrometric determination of total sulfur and trace metals in samples of raw or calcined petroleum coke.