Effect of Flow and Dissolved Oxygen on the Compatibility of Pongamia pinnata Biodiesel with Common Construction Materials Used in Storage and Transportation

Table 2

ASTM standards for diesel, biodiesel, and fuel properties of PBD.

Parameters	ASTM D975	ASTM D6751	PBD	Unit
Flash point	52 min	130.0 min	126	°C
Water content and sediment	0.050 max	0.050 max	0.0322	% vol
Kinematic viscosity 40°C	1.9–4.1	1.9–6.0	6.06	mm^2/sec
Sulfated ash	0.01 max	0.020 max	0.01	% mass
Sulfur (grade number 2, low sulfur/S 500 grade)	0.05 max	0.05 max	0.0013	% mass
Copper strip corrosion	Number 3 max	Number 3 max	2	—
Cetane	40 min	47 min	62.0	—
Carbon residue	0.35 max	0.050 max	0.02	% mass
Acid number	—	0.80 max	0.3	Mg KOH/g
Free glycerin	—	0.020 max	0.01	% mass
Total glycerin	—	0.240 max	0.12	% mass
Phosphorous contents	—	0.001 max	0.0001	% mass
Distillation temperature, atmospheric equivalent temperature, 90% recovered	282–338	360 max	242	°C
Aromaticity	35 max	—	—	% vol.