ASTM D7359 - 23
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)
| Aviso: | Las normas ASTM en lectura se visualizan a través del área decliente. Los archivos no se pueden descargar |
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| Fecha edición: |
2023-04-01
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | analysis; anions; aromatics; chloride; chlorine; CIC; combustion; combustion ion chromatography; fluoride; fluorine; hydrolysis; ion chromatography; oxidative pyrohydrolytic combustion; petroleum; pyrohydrolytic; sulfur; |
| Scope: | 1.1 This test method covers the individual determination of total fluorine, chlorine, and sulfur in aromatic hydrocarbons and their mixtures. Samples containing 0.10 mg/kg to 10 mg/kg of each element can be analyzed. 1.2 This method can be applied to sample concentrations 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. 1.2.1 Special considerations must be made in order to attain detection limits below 1.0 mg/kg in a sample. The instrument must be clean and properly maintained to address potential sources of contamination, or carryover, or both. Multiple sequential injections shall be completed until a stable background is attained. A stable background is considered to be achieved when the analysis of a minimum of three consecutive system blanks have area counts equal to or less than 5 % RSD for the anions of interest. 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. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Section 9. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 71.080.20 - Hidrocarburos halogenados |
| CTN: | D16.04 - D16.04 |
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Anulaciones Normas |
Anula a D7359-18 |
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Otras Relaciones |
Es referenciada por F3700 - 25 Es referenciada por D7125-23 Es referenciada por D8149-20 Es referenciada por D4077-23 Es referenciada por D1152 - 24 Es referenciada por D3193 - 24 Es referenciada por D7185 - 24 Es referenciada por D7124 - 24 Es referenciada por D2359 - 24 Es referenciada por D8577 - 25 Es referenciada por D5211 - 24 Es referenciada por D7566 - 24d Es referenciada por D4054 - 25 |










