Fuel and Lubricant Testing


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ASTM D287 - API Gravity of Crude Petroleum and Petroleum Products (Hydrometer Method)


We perform crude oil testing by ASTM D287 (API Gravity/Density). Gravity is an important quality indicator for automotive, aviation, and marine fuels. Gravity is a factor governing the quality of crude oils. However, the gravity of a petroleum product is an uncertain indication of its quality. Correlated with other properties, gravity can be used to give approximate hydrocarbon composition and heat of combustion. Gravity is an important quality indicator for automotive, aviation and marine fuels, where it affects storage, handling and combustion. Gravity by ASTM D287 determines, using a glass hydrometer, the API gravity of crude petroleum and petroleum products normally handled as liquids and having a Reid vapor pressure (ASTM D323) of 26 psi (180 kPa) or less.

We also perform density and gravity testing by ASTM D1298ASTM D1475ASTM D4052ASTM D891DIN 51757IP 160, and ISO 3675. These different test methods use different instruments or procedures or are used for certain sample types. Click on the test method number to learn more about each test.

Contact us today to receive a quote for your crude oil testing.

Sample quantity required: 1 liter (1000 ml)

For additional information on this test method or to purchase a copy of the method, please click HERE to open a new window and visit the ASTM website.