ASTM D5623 for sulfur compounds in light petroleum liquids
ASTM D5623 standard test method for sulfur compounds in light petroleum liquids by gas chromatography and sulfur selective detection
11. Precision and Bias
11.1 Data is insufficient for determining precision and bias of atomic emission detector use in this test method. Data is sufficient, however, for determining precision of sulfur chemiluminescence detector used in this test method. The precision of this test method as determined by the statistical examination of the interlaboratory test results is as follows:
11.1.1 Repeatability - The difference between successive test results obtained by the same operator with the same apparatus under constant operating conditions on identical test material would, in the long run, in the normal and correct operation of the test method, exceed the following values only in one case in twenty (see Table 2 and Table 3).
11.1.2 Reproducibility - The difference between two single and independent results obtained by different operators working in different laboratories on identical test material would, in the long run, exceed the following values only in one case in twenty (see Table 4 and Table 5).
11.2 Bias - Since there is no accepted reference material suitable for measuring bias for this test method, no statement of bias can be made.
12. Keywords
12.1 atomic emission detection; gas chromatography; sulfur chemiluminescence detection; sulfur compounds
