What is ASTM D2699?

ASTM D2699 (RON) is an internationally accepted test method using RON test engine to test the knock rating of spark-ignition engine fuel in terms of Research Octane Number.

What is ASTM D4814?

ASTM D4814 – Standard Specification for Automotive Spark-Ignition Engine Fuel. We perform gasoline quality and conformance testing by Specification ASTM D4814, which covers automotive spark-ignition engine fuels for ground vehicles.

What are the requirements of SI engine fuels?

The best fuel economy is obtained with a 15:1 to 16:1 ratio, while maximum power output is achieved with a 12.5:1 to 13.5:1 ratio. A rich mixture in the order of 11:1 is required for idle heavy load, and high-speed conditions. A lean mixture is required for normal cruising and light load conditions.

What is ASTM petroleum?

ASTM test methods are petroleum industry standards, accepted worldwide for quality and reliability. ASTM test methods for petroleum and refined products include: Petroleum and Petrochemical Test Directory. ASTM Tests for Petroleum, Fuels and Petrochemicals.

Which is the most preferred SI engine fuel?

For SI engines the aromatics are the best fuel and the paraffins are least desirable. The reason for this is normal paraffins exhibit the poorest antiknock quality when used in SI engines.

What are the fuel requirements?

The fundamental requirements of gasoline are that it should vaporise and form a flammable mixture with air and then that it should burn in a controlled way. The volatility is expressed in terms of key points on the distillation curves, the final boiling point and the vapour pressure at a reference temperature.

What is ASTM D standard?

The ASTM D-10 standards Committee is responsible for the promotion of knowledge in, and the development of standards for packaging. Standards shall include terminology, practices, test methods, specifications, guides, and classifications (including dimensions).

What is ASTM Oil No 3?

IRM 903 oil (Formerly known as ASTM Oil No 3) is a testing oil to be used in testing rubber components as per ASTM standards.

Which liquid fuel can be used in SI engines?

The most common alternative fuels for SI engines are ethanol in blends with gasoline as well as compressed natural gas (CNG) , liquefied natural gas (LNG) , and liquefied petroleum gas (LPG) . Biodiesel, synthetic diesel, green diesel, and DME are the most common alternative fuels for CI engines.

Which is the best option to avoid knock in SI engine?

To prevent knock in SI engine the end gas should have low temperature, pressure and density, a long ignition delay and a non-reactive composition.

Which is the most prepare SI engine fuel?

So, ethanol has been used widely as alternative fuel in internal combustion engines. The octane number of ethanol is higher than the octane number of the gasoline. The high octane number of ethanol allows the use of ethanol as fuel in an SI engine with a higher compression ratio [40].

What are the standard specifications for gasoline and diesel fuel?

The presentations will discuss in detail the Standard Specifications for gasoline (ASTM D4814), for diesel fuel (D975), and aviation fuel (D1655).

How to test for sulfur in gasoline?

Standard Test Method for Sulfur in Gasoline, Diesel Fuel, Jet Fuel, Kerosine, Biodiesel, Biodiesel Blends, and Gasoline-Ethanol Blends by Monochromatic Wavelength Dispersive X-ray Fluorescence Spectrometry

What is the purpose of ASTM petroleum standards?

Petroleum Standards ASTM’s petroleum standards are instrumental in the evaluation and assessment of the physical, mechanical, rheological, thermal, and chemical properties of crude oils, lubricating grease, automobile and aviation gasoline, hydrocarbons, and other naturally occurring energy resources used for various industrial applications.

What are the tests for fuels?

These fuels are tested for their composition, purity, density, miscibility and compatibility with other fluids and materials, toxicity, and thermal stability among others.