EN and ASTM biodiesel testing to quality standards.
The biodiesel fuel quality test specifications table below provides comparisons between EN and ASTM biodiesel requirements. These specifications are subject to revision. Intertek operates a global laboratory network of biodiesel testing facilities, with extensive biodiesel quality testing expertise and experience.
| Biodiesel, FAME Tests | EN 14214-03 | Biodiesel Test Comments | ASTM D6751-07b |
|---|---|---|---|
| Density | EN ISO 3675 or 12185 | Hydrometer, Densitometer | N/A |
| API Gravity or density | N/A | Not a specification requirement | D1298 or D4052 |
| Kinematic Viscosity @ 40OC | EN ISO 3104 | Methods are equivalent | D445 |
| Flash Point | EN ISO 3679 | Rapid equilibrium closed cup | N/A |
| Flash Point | N/A | PM Closed cup | D93 |
| Sulphur content | EN ISO 20846 or 20884 | UV fluorescence, WDXRF | N/A |
| Sulfur content | N/A | UV Fluorescence | D5453 |
| Carbon residue (on 10% Bottoms) | EN ISO 10370 | MCRT | N/A |
| Carbon residue (whole sample) | N/A | MCRT | D4530 |
| Cetane number | EN ISO 5165 | Cetane Engine, Methods are equivalent | D613 |
| Derived Cetane Number | N/A | IQT, Alternative for D6751 | D6890 |
| Sulphated ash | ISO 3987 | Methods are equivalent | D874 |
| Water content | EN ISO 12937 | Coulometric Karl Fischer | N/A |
| Water & sediment content | N/A | By Centrifuge | D2709 |
| Total contamination | EN 12662 | By Filtration | N/A |
| Copper strip corrosion | EN ISO 2160 | Methods are equivalent | D130 |
| Oxidation stability | EN 14112 | Rancimat, 6 hour requirement | N/A |
| Oxidation stability | N/A | Rancimat, 3 hour | EN 14112 |
| Acid value | EN 14104 | PP Colorimetric Titration | N/A |
| Acid number | N/A | Potentiometric Titration | D664 |
| Iodine value | EN14111 | By Titration | N/A |
| Linolenic acid methyl ester | EN 14103 | By GC. | N/A |
| Polyunsaturated methyl esters | EN 14103 | By GC. | N/A |
| Ester content | EN 14103 | By GC. | N/A |
| Methanol content | EN 141110 | By GC. | EN14110 |
| Monoglyceride content | EN 14105 / 6 | By GC. | N/A |
| Diglyceride content | EN 14105 / 6 | By GC. | N/A |
| Triglyceride content | EN 14105 / 6 | By GC. | N/A |
| Free glycerol | EN 14105 / 6 | By GC. | N/A |
| Total glycerol | EN 14105 / 6 | By GC. | N/A |
| Free & total Glycerin | N/A | By GC. | D6584 |
| Group I (alkali) metals Na, K | EN 14108 Na, 14109 K | AAS | N/A |
| Group I (alkali) metals Na, K | N/A | ICP | EN14538 |
| Group II (alkali) metals Ca, Mg | EN 14538 | ICP | EN14538 |
| Phosphorus content | EN 14107 | ICP | N/A |
| Phosphorus content | N/A | ICP | D4951 Mod. |
| Cold Filter Plugging Point, OC | EN 116 | Cold Flow Test | N/A |
| Cloud Point | N/A | Wax Appearance Temp. | D2500 |
| 90% Recovered Distillation | N/A | Vaccum Distillation | D1160 |
