ASTM D6428 Test Method for Total Sulfur in Liquid Aromatic Hydrocarbons and Their Derivatives by Oxidative Combustion and Electrochemical Detection
15. Precision and Bias
15.1 Precision - Based on limited information (10 analyses by one operator, two samples), from one laboratory, the absolute standard deviation of 0.02 mg/kg at the 1.01 mg/kg level of sulfur and the absolute standard deviation of 2.76 mg/kg at the 80.0 mg/kg level of sulfur were obtained.
15.1.1 Intermediate Precision - Within laboratory results by a single operator should not be considered suspect unless they differ by more than the amount shown in Table 3.
15.1.2 Reproducibility - The data of this test method is being determined.
15.2 Bias - Since there is no accepted reference material suitable for determining the bias in this test method for measuring sulfur in aromatic hydrocarbons, bias has not been determined.
16. Keywords
16.1 aromatic hydrocarbons; catalyst; electrochemical; nitrogen content; oxidative combustion; oxygenated aromatics; petroleum hydrocarbons; poison
