After intense debate with ASTM and consensus building by ASTM Biodiesel Task Force Chairman Steve Howell of MARC-IV, ASTM International published a new grade of pure biodiesel in ASTM D6751 specifications for biodiesel (B100). The new No. 1-B grade is designed to help eliminate relatively rare and sporadic instances of filter clogging with biodiesel blends in the US market. The new No. 1-B specification adds a new maximum level of 0.4 wt % monoglycerides, which required development and approval of modified ASTM test methods as well as gaining consensus on the value of 0.4%. The current specifications become the No. 2-B grade within D6751 without change.
ASTM International Publishes New Grade of Biodiesel to Solve Intermittent Cold Weather Issues
Posted on Jan 31, 2013
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