ASTM D7359 Standard Test Method for Total Fluorine, Chlorine and Sulfur in Aromatic Hydrocarbons and Their Mixtures by Oxidative Pyrohydrolytic Combustion followed by Ion Chromatography Detection (Combustion Ion Chromatography-CIC)
ASTM D7359用高溫氧化燃燒法和離子色譜檢測法(燃燒離子色譜-CIC)測定芳烴及其混合物中總氟、氯和硫磺的試驗方法
The total fluorine, chlorine and sulfur contained in aromatic hydrocarbon matrices can contribute to emissions, be harmful to many catalytic chemical processes, and lead to corrosion. This test method can be used to determine total sulfur and halogens aromatic hydrocarbon matrices, in finished products and can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria.
1. Scope
1.1 This test method covers the individual determination of total fluorine, chlorine and sulfur in aromatic hydrocarbons and their mixtures. Samples containing 0.1 to 50 mg/kg of each element can be analyzed.
1.2 This method can be applied to sample types outside the range of the scope by dilution of the sample in an appropriate solvent to bring the total concentrations of fluorine, chlorine and sulfur within the range covered by the test method. However, it is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results conform to the precision and accuracy of the method.
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 E 29.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See Section 8.
2. Referenced Documents (purchase separately)
ASTM Standards
D1193 Specification for Reagent Water
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
D6809 Guide for Quality Control and Quality Assurance Procedures for Aromatic Hydrocarbons and Related Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
Other Documents
OSHARegulations29CFR paragraphs 1910.1000 and 1910.1200
Index Terms
analysis; anions; aromatics; chloride; chlorine; CIC; combustion; combustion ion chromatography; fluoride; fluorine; hydrolysis; ion chromatography; oxidative pyrohydrolytic combustion; petroleum; pyrohydrolytic; sulfur;
