Fuel and Lubricant Testing


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IP 388 - Oxidation Stability of Middle-Distillate Fuels

We perform testing by IP 388 to measure the oxidation stability of diesel and other middle distillates by bubbling oxygen through the heated sample for 16 hrs. This test measures the inherent stability of middle distillates (e.g., diesel fuel) under oxidation conditions.  The test is performed by placing a measured quantity of fuel in a test tube and bubbling oxygen through the liquid while heating the liquid to 95°C for 16 hours.  Following the exposure, the liquid is filtered and the level of insoluble material is measured. 

This test simulates storage of diesel fuel for one year.  A result of less than 1.5 mg/100 ml is generally considered acceptable.

We also perform oxidation stability testing by ASTM D2112ASTM D2272ASTM D2274ASTM D2440ASTM D525ASTM D7462ASTM D873ASTM D942ASTM D943DIN 51587EN 15751IP 142IP 40ISO 12205ISO 4623, and ISO 7536. 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 fuel testing.

IP 388 corresponds to ISO 12205 and ASTM D2274.