The Tamson Filter Blocking Tendency-tester (TFBT) is an automated instrument designed to test the Filter Blocking Tendency (FBT) of distillate fuels including diesel, biodiesel (B100 & B5/7/20/30), gas oil, gas turbine fuel, and kerosene. It conforms to ASTM D2068 and IP 387. Cold flow issues with diesel containing FAME (biodiesel) and FAME material has resulted in the development of the new EI Industry test (IP PM EA) method standard to check quality of FAME and diesels to avoid major fuel operability problems.