ASTM D-6751 / BIS standards for biodiesel
Flash point (closed cup)
130°C min. (150°C average)
Water and sediment
0.050% by vol., max.
Kinematic viscosity at 40°C
1.9-6.0 mm2/s
Ramsbottom carbon residue, % mass
0.10
Sulfated ash
0.020% by mass, max.
Sulfur
0.05% by mass, max.
Copper strip corrosion
No. 3 max
Cetane
47 min.
Carbon residue
0.050% by mass, max.
Acid number -- mg KOH/g
0.80 max.
Free glycerin
0.020 % mass
Total glycerine (free glycerine
and unconverted glycerides
combined)
0.240% by mass, max.
Phosphorus content
0.001 max. % mass
Distillation
90% @ 360°C