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Research Report
Approved: Oct 01, 2008
RR:D02-1649
D6751-Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels
An interlaboratory study was conducted to establish a precision statement for D6751, Standard Test Method for Determining of Fuel Filter Blocking Potential of Biodiesel (B100) Blend Stock by Cold Soak Laboratory Filtration. The prime objective of the Operability Task Force was in part to assess suitability and effectiveness of the proposed ASTM Cold Soak Filtration method in minimizing the risk of filter plugging in biodiesel blends. The data from this Operability Task Force was used to determine an interim Precision for the proposed ASTM Test Method for Cold Soak Filtration. This report is an attempt to supply such an analysis based on well-established methodologies. Subsequent to test method publication a more thorough round robin is planned. Nine laboratories tested seven fuel types.