1.1 This test method covers the determination of chlorine by
monochromatic, wavelength-dispersive X-ray fluorescence
(MWDXRF) spectrometry in aromatic hydrocarbons, their
derivatives, and related chemicals.
1.2 This test method is applicable to samples with chlorine
concentrations from 0.5 mg/kg to 15 mg/kg. Higher chlorine
concentrations can be determined by quantitatively diluting the
sample with a suitable solvent. In a preliminary robustness
study, the limit of detection was estimated to be 0.06 mg/kg.
1.3 In determining the conformance of the test results using
this method to applicable specifications, results shall be
rounded off in accordance with the rounding-off method of
Practice E29.