| D 86 |
Distillation at 90% rec., atmospheric |
The D86 Distillation method is a measure of fuel volatility. The appropriate volatility range will assure maximum power output and fuel economy. This method is appropriate for diesel, diesel blends, gasoline, and gasoline blends.
|
200 mL |
$61.00 |
| D 93 |
Flash Point, closed cup |
The D93 Flash Point method reports the temperature at which ignitable vapors are produced and is a requirement for safe fuel storage and handling. This method can also be an indirect measure of fuel contamination, i.e. gasoline in diesel.
|
200 mL |
$37.00 |
| D 381 |
Solvent-washed Gum Content |
The D381 Washed and Unwashed Gum Content measures the amount of gum residues present in the fuel. Gums are varnish-like oxidation products that can cause sticking and plugging of moving fuel components. This test is most appropriate for gasoline, ethanol, gasoline blends, and aviation fuels. The D6217 and D7321 methods are better suited for diesel, biodiesel, and diesel blends.
|
75 mL |
$46.00 |
| D 381 |
Unwashed Gum Content |
The D381 Washed and Unwashed Gum Content measures the amount of gum residues present in the fuel. Gums are varnish-like oxidation products that can cause sticking and plugging of moving fuel components. This test is most appropriate for gasoline, ethanol, gasoline blends, and aviation fuels. The D6217 and D7321 methods are better suited for diesel, biodiesel, and diesel blends.
|
75 mL |
$46.00 |
| D 4052 |
Density by Digital Density Meter |
The D4052 Density method measures the density of liquids. Standard density measurements are generally taken at 15.6°C and several measures of density can be obtained. Density is the mass per unit volume of fuel and is typically reported as g/mL. Relative Density and Specific Gravity are the same measurement and is the density of the fuel divided by the density of water at the same temperature. This value is unitless. API gravity is a calculated measure of density where low API indicates a high-density fuel and high API indicates a low-density fuel.
|
15 mL |
$26.00 |
| D 4052 |
Specific Gravity (Relative Density) |
The D4052 Density method measures the density of liquids. Standard density measurements are generally taken at 15.6°C and several measures of density can be obtained. Density is the mass per unit volume of fuel and is typically reported as g/mL. Relative Density and Specific Gravity are the same measurement and is the density of the fuel divided by the density of water at the same temperature. This value is unitless. API gravity is a calculated measure of density where low API indicates a high-density fuel and high API indicates a low-density fuel.
|
15 mL |
$26.00 |
| D 4176 |
Visual Inspection |
The D4176 Visual Inspection provides a visual assessment of fuel quality. Procedure 1 looks for visual evidence of haze, water droplets, and/or sediment. Procedure 2 uses a numerical description for the strength of haze present in the fuel.
|
500 mL |
$17.00 |
| D 4814 |
Driveability Index |
The D4814 Driveability Index is an indirect measure of a fuel's volatility, therefore indicating the quality of engine start and warm-up. Fuels with a higher DI are less volatile than those with a lower DI. The Driveability Index is a calculation that requires D86 distillation and D4815 ethanol content and can be calculated for gasoline containing up to 15 % volume ethanol.
Calculation that requires Distillation (D 86) and Ethanol Content (D 4815).
|
110 mL |
$156.00 |
| D 4814 |
Calculated V/L Ratio |
The D4814 Calculated V/L Ratio gives an approximation for the Vapor-Liquid ratio as measured by the D5188 Vapor-Liquid Ratio Temperature Determination test. The calculation requires D86 Distillation and D5191 Vapor Pressure and is applicable for gasoline containing up to 15 % volume ethanol.
Calculation that requires Distillation (D 86) and Vapor Pressure (D 5191).
|
130 mL |
$116.00 |
| D 4815 |
Ethanol Content (E20 & lower blends) |
The D4815 Ethanol Content method measures the amount of ethanol in gasoline blends up to E20 (20 % ethanol). For ethanol amounts over 20 %, the D5501 method is more appropriate.
|
10 mL |
$80.00 |
| D 5191 |
Vapor Pressure (DVPE) |
The D5191 Vapor Pressure method measures the vapor pressure exerted by liquid fuels and is given as the Dry Vapor Pressure Equivalent (DVPE) which very closely approximates the results obtained by ASTM D4953 Vapor Pressure (Dry Method). This test is most suitable for gasoline and gasoline blends up to 85 % ethanol.
At least 30 mL of sample required with between 20% and 30% headspace.
|
30 mL |
$40.00 |
| D 5453 |
Sulfur |
The D5453 Sulfur method measures the total sulfur content by UV fluorescence. This test is suitable for most liquid hydrocarbons and some solids (i.e. fats and feedstock materials) if they can be dissolved in toluene. This method is not suitable for glycerin.
|
20 mL |
$51.00 |
| D 7872 (m) |
Polymer Content by Gel Permeation Chromatography |
The D7872m Polymer Content by Gel Permeation Chromatography is a slightly modified method for determining the polymer content of liquid fuels. Polymers are commonly found in pipeline additives and cold-flow additives and, when in excess, can cause issues like filter plugging.
|
10 mL |
$200.00 |
| In-House |
Mass Spectrometry |
Mass Spectrometry (GC/MS) can be used to identify unknown compounds or to give a more detailed look at the composition of a fuel product or feedstock material. This instrument has been especially useful for analyzing filter residue from plugged filters or analyzing fuel samples that may have been adulterated (vandalized).
|
10 mL |
$130.00 |