Table 5 Properties of fatty acid methyl esters as compared to international standard requirements of ASTM

Kinetic viscosity at 40 °C

mm² s⁻¹

3.25

2.668 ± 0.027

5.404

D 445 (1.9–6.0)

Density at 40 °C

kg m⁻³

0.870 ± 0.000

0.858 ± 0.002

0.865 ± 0.006

Acid value

mgKOH g⁻¹

0.33 ± 0.008

0.18 ± 0.03

0.37 ± 0.002 

D 664 (Max. 0.5)

Cetane number

57.83

64.43 

64.75 

D 613 (47 minimum)

Water content

% volume

0.023 ± 0.008

0.044 ± 0.007

0.047 ± 0.005

D 2709 (0.050 %)

Cloud point

°C

17–18

15–17

19–20

ASTM D6751 (−3 to 12)

Pour point

°C

13

12

13

ASTM D6751 (−15 to 10)