Technical Expertise
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Middle Distillates

AmSpec’s state-of-the-art laboratories provide a full range of diesel fuel testing and field inspections. Services are offered for a wide range of fuels, including diesel fuel, Biodiesel blends, ULSD and other fuel oils.

Fuel Oil Services:

  • Diesel and No. 2 Fuel Oils

  • Biodiesel Testing/Blends

  • BS EN 590 diesel fuel testing

  • Ultra Low Sulfur Diesel (ULSD) testing

  • Testing to ASTM and other protocols

  • Additive Services for Petroleum and Fuels

Diesel Fuel Tests:

  • Diesel cargo additive treatment

  • General properties, API gravity, density, relative humidity

  • Flash, Distillation, Simulated Distillations

  • Sulfur, Aromatics, Ash

  • Cetane Index, Cetane Number

  • Thermal Stability

  • Lubricity, HFRR

  • Metals

  • Microbiological contamination of diesel fuel

  • Fuel Test Kit for Microbe Detection (Diesel fuel)

AmSpec closely monitors the ever-changing CFR (Code of Federal Regulations) to ensure that processes are in place to meet today’s ecological needs. AmSpec meets its responsibility to clients and employees in making sure they have current information, the latest available test methods and the equipment to meet these challenges and changes.

Through our facilities and laboratories, we analyze and test gasoline samples from all aspects of the oil sector, including refineries, distributors and storage facilities. Our certified lab technicians and experienced chemists provide the level of detail needed to measure your gasoline samples, conduct analysis and ensure industry compliance.

Diesel Fuel Testing Expertise

  • At AmSpec, we strive to provide you with superior diesel fuel testing through a deep understanding of your challenges, market conditions and technical questions related to the products you deal with.

  • Product knowledge is a central theme in your daily business and AmSpec provides this through a team of product experts who are well recognized by the oil and gas industry.

  • For over 30 years, AmSpec LLC has independently and accurately analyzed and measured petroleum and petrochemical products throughout the US, with support from our multiple international affiliate locations. AmSpec and its employees strive for the highest degree of quality performance, which is achieved through clear and well-documented systems, proper training, high qualifications of our employees, and continuous improvements to our overall operations.

Ultra Low Sulphur Diesel (ULSD) Testing

A 15 parts per million (ppm) sulfur specification, known as Ultra Low Sulfur Diesel (ULSD), was phased in for highway diesel fuel by US-EPA. Diesel engines equipped with advanced emission control devices (generally, 2007 and later model year engines and vehicles) must use highway ULSD fuel. Exhaust emissions from these engines will decrease by more than 90%.

AmSpec laboratories are qualified by US-EPA* to perform low level sulfur determinations of Ultra Low Sulfur Diesel. Fuel testing and field inspections services are offered for a wide range of fuels, including diesel fuel, biodiesel blends, ULSD and other fuel oils.

Diesel fuel tests:

  • Sulfur by ASTM D5453, ASTM D2622, or ASTM D7039

  • Lubricity by ASTM D6079 or ASTM D7688

  • Conductivity ASTM D2624

  • Diesel Fuel Slate Testing

*Sulfur Analysis and ULSD:

EPA allows ASTM D5453, ASTM D2622, ASTM D7039 and some other test methods under the performance-based test method approach. Methods could be qualified if they meet specified performance criteria specified in 40 CFR 80.584 and 40 CFR 80.585.