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- ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry7. Apparatus7.1 Mass Spectrometer - The suitability of the mass spectrometer to be used with this method of analysis shall be proven by performance tests described herein.7.2 Sample Inlet System - Any inlet system permitting the ...
- ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry4. Summary of Test Method4.1 Samples are separated into saturate and aromatic fractions by Test Method D2549, and each fraction is analyzed by mass spectrometry. The analysis is based on the summation of characteristic mass fragments ...
- ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry ASTM D2425 for Hydrocarbon Types in Middle Distillates by Mass Spectrometry1. Scope1.1 This test method covers an analytical scheme using the mass spectrometer to determine the hydrocarbon types present in virgin middle distillates 204 to 343°C (400 to 650°F) boiling range, 5 to 95 volume % as determined ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography13. Report13.1 Report the temperature to the nearest 0.5°C (1°F) at 1 % intervals between 1 and 99 % and at the IBP (0.5 %) and the FBP (99.5 %).NOTE 8 - If a plot of the boiling point distribution curve is desired, use ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography11. Procedure11.1 Sample Preparation:11.1.1 The amount of sample injected must not overload the column stationary phase nor exceed the detector linear range. A narrow boiling range sample will require a smaller amount injected ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography10. Calibration and Standardization10.1 Analysis Sequence Protocol - Define and use a predetermined schedule of analysis events designed to achieve maximum reproducibility for these determinations. The schedule will include ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography9. Preparation of Apparatus9.1 Chromatograph - Place in service in accordance with the manufacturer's instructions. Typical operating conditions are shown in Table 1.9.1.1 When a FID is used, regularly remove the deposits ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography6. Apparatus6.1 Chromatograph - The gas chromatograph used must have the following performance characteristics:6.1.1 Detector - Either a flame ionization or a thermal conductivity detector may be used. The detector must ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography4. Summary of Test Method4.1 The boiling range distribution determination by distillation is simulated by the use of gas chromatography. A nonpolar packed or open tubular (capillary) gas chromatographic column is used to ...
- ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatograp ASTM D2887 Boiling Range Distribution of Petroleum Fractions by Gas Chromatography1. Scope1.1 This test method covers the determination of the boiling range distribution of petroleum products. The test method is applicable to petroleum products and fractions having a final boiling point of 538°C (1000°F) ...