An Experimental Investigation of Karanja Biodiesel Production in Sarawak, Malaysia

Table 3

Properties of karanja methyl esters and test methods used.

Property	CKO methyl ester	EN 14214/ASTM limits	Test methods
Acid value, KOH, mg g^−1	0.17	0.5 max	EN 14104
Water content, %	0.038	0.05% max	EN ISO 12937
Kinematic viscosity (40°C), mm^2/s	4.66 ± 0.02	3.50–5.00	EN ISO 3104
Cloud point, °C	6	NS	EN14214
Pour point, °C	3	NS	ASTM D 97
Flash point, °C	212	120 min	EN22719
Density (15°C), g cm^−3	0.883	0.860–0.900	EN ISO 3675
Group 1 metals (Na + K), mg/kg		0.5	EN14214
Free glycerin, wt%	0.0064	0.02	ASTM D6584
Total glycerin, wt%	0.082	0.240	ASTM D6584
Phosphorus, mg/kg	0.04	<4–10	ASTM D4951
Monoglyceride content, wt%	2.63	<0.8	EN4214
Diglyceride content, wt%	0.78	<0.2	EN4214
Triglyceride content, wt%	0.06	<0.2	EN4214

NS: not specified.