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ASTM D7096-05
Standard Test Method for Determination of the Boiling Range Distribution of Gasoline by Wide-Bore Capillary Gas Chromatography
13 стр.
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104.52 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
75.160.20 Liquid. Including gasoline, diesel, kerosene, etc. / Жидкое топливо
Сборник (ASTM):
05.04 Petroleum Products, Liquid Fuels, and Lubricants (IV): D6973–D7755 / Нефтепродукты, жидкое топливо и смазочные материалы (IV): D6973–D7755
Тематика:
Petroleum
Описание
Значение и использование

The determination of the boiling range distribution of gasoline by gas chromatographic simulated distillation provides an insight into the composition of the components from which the gasoline has been blended. Knowledge of the boiling range distribution of gasoline blending components is useful for the control of refinery processes and for the blending of finished gasoline.

The determination of the boiling range distribution of light hydrocarbon mixtures by gas chromatographic simulated distillation has better precision than the conventional distillation by Test Method D 86. Additionally, this test method provides more accurate and detailed information about the composition of the light ends. The distillation data produced by this test method are similar to that which would be obtained from a cryogenic, true boiling point (15 theoretical plates) distillation.

Область применения

1.1 This test method covers the determination of the boiling range distribution of gasoline and liquid gasoline blending components. It is applicable to petroleum products and fractions with a final boiling point of 280C (536F) or lower, as measured by this test method.

1.2 This test method is designed to measure the entire boiling range of gasoline and gasoline components with either high or low vapor pressure and is commonly referred to as Simulated Distillation (SimDis) by gas chromatographers.

1.3 This test method has been validated for gasoline containing ethanol. Gasolines containing other oxygenates are not specifically excluded, but they were not used in the development of this test method.

1.4 This test method can estimate the concentration of n-pentane and lighter saturated hydrocarbons in gasoline.

1.5 The values stated in SI units (degrees Celsius) are to be regarded as the standard. Results in degrees Fahrenheit can be obtained by simply substituting Fahrenheit boiling points in the calculation of the boiling point-retention time correlation.

1.6This 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.

Ключевые слова:
blending streams; boiling range distribution; capillary gas chromatography; gas chromatography; gasoline; oxygenate