中文摘要：

通过对生物柴油与石化柴油的低温流动性、雾化蒸发性、燃烧性、动力性、安定性、腐蚀性、清洁性、润滑性等理化性能指标和国内外的生物柴油质量标准的比较分析，得到两者的差异，为生物柴油的分级和质量标准的制定开拓了思路。

英文摘要：

The text compared the bio-diesel and petrochemical diesel in low-temperature fluidity, atomization, evaporation, combustion, power, stability, corrosion, cleaning and lubrication. Also, it compared the quality standards of bio-diesel in and out of our country. Finally the differences and idea of how to grade bio-diesel and constitute bio-diesel quality standards and grading standards are got.