Synthesis of Ca-Doped Three-Dimensionally Ordered Macroporous Catalysts for Transesterification

Table 2

Properties of RPO biodiesel.

Parameters	Testing method (standard value)	Limitation of Thai community	Biodiesel in this study
Viscosity at 40°C (cSt)	ASTM D445 (1.9–6.0)	1.9–6.0	7.1
Density at 15°C (g/cm^3)	EN 14214 (0.86–0.90)	0.86–0.90	0.86
Acid value (mg KOH/g)	ASTM D664 (0.50 max)	0.80 max	1.64