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Table 9 Characteristic of biodiesel compared to ASTM and EN standards

From: Response surface optimization of biodiesel yield from pre-treated waste oil of rendered pork from a food processing industry

Property

Biodiesel from WO-RP

ASTM D6751-12

EN 14214:2012

Unit

Acid number

0.75

< 0.8

0.80 max

mg KOH/g

Ash content

0.01

0.02

0.02

% mass

Density @room temperature

0.86

0.73

0.860–0.900

g/cm3

High heating value

39.98

> 35

35–40

MJ/kg

Kinematic viscosity @40 °C

6.9

1.9–6.0

3.5–5.0

mm2/s

Water content

0.10

0.05

%