A simplified approach for gaging color shifts uses “Delta E”: Generally speaking the human eye can perceive a Delta “E” greater than or equal to 2.3. However, for quality control purposes, it is necessary to know not only the magnitude of the departure from standard, but also the direc...
格式:PDF 页数:15 大小:104.44KB 《ASTM D6751-2015a red 4532 Standard Specification for Biodiesel Fuel Blend Stock (B100) for Middle Distillate Fuels《中间馏出燃料用生物柴油燃料混合料 (B100) 的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6751-2015a red 4532 Standard Specification for ...
49、30 No. 3 No. 3 No. 3 No. 3Cetane number, min D613 47 47 47 47Cloud point,E C D2500 Report Report Report ReportCarbon residue,F % mass, max D4530 0.050 0.050 0.050 0.050Acid number, mg KOH/g, max D664 0.50 0.50 0.50 0.50Free glycerin, % mass, max D6584 0.020 0.020 0.02...