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The lowest temperature at which the fuel will ignite if exposed to a flame is referred to as its flashpoint.
• ASTM certified B100 must have a flashpoint greater than 266°F (130°C). Flashpoint will vary due to different feedstocks and other factors. Some biodiesel has had flashpoints greater than 300°F!
Photo courtesy of Helene Jutras
• In comparison, petroleum diesel must have a flashpoint greater than only 100°F (38°C) for type #1, or 126°F (52°C) for type #2 in order to pass ASTM standards.
The higher flashpoint makes it a much safer substance than petroleum diesel to have around.
Return from 'Biodiesel Flashpoint' to 'Making Biodiesel Fuel'