Biodiesel
| |
|
Requirements and test methods |
| Test method |
Method |
EN 14214
EN 14213 |
ASTM D 6751
ASTM D 7467 |
EN 590 |
| Acid number |
Titration
|
EN 14104
|
ASTM D 664 |
– |
| Iodine number |
Titration |
EN 14111
|
– |
– |
| Water content |
KFTcoulometric |
EN ISO 12937 |
√ |
EN ISO 12937 |
| Oxidation stability |
Oxidation stability |
EN 15751
(EN 14112) |
EN 15751
(EN 14112)
|
EN 15751a |
| Free and total glycerol content |
Ion chromatography
|
√ |
ASTM D 7591 |
– |
Alkali metal and alkaline
earth metal content |
Ion chromatography
|
√ |
√ |
– |
| Antioxidant content |
Ion chromatography |
recommended
|
recommended |
recommended |
| Sulfur content |
CIC |
√ |
√ |
√ |
a Applies to pure biodiesel and blends that contain at least 2% (v/v) biodiesel
Bioethanol
| |
|
Requirements and test methods |
| Test method |
Method |
EN 15376 |
ASTM D 4806
ASTM D 5798 |
pHe value
|
pHe value
|
EN 15490
|
ASTM D 6423 |
Conductivity
|
Conductivity
|
DIN 51627-4
|
– |
| Total acid number and acidity |
Titration |
EN 15491 |
ASTM D 1613 |
| Inorganic chloride content |
Titration |
EN 15484 |
ASTM D 512 |
| Total inorganic sulfate content |
Titration |
– |
ASTM D 7318 |
| Water content |
KFTcoulometric
KFTvolumetric
|
EN 15489
– |
ASTM E 1064
ASTM E 203
|
| Inorganic chloride content |
Ion chromatography
|
EN 15492
|
ASTM D 7319
ASTM D 7328
|
Total and potential inorganic
sulfate content |
Ion chromatography |
EN 15492 |
ASTM D 7319
ASTM D 7328
|
| Sulfur content |
CIC |
√ |
√ |
| Copper content |
Voltammetry |
√ |
√ |
KFT = Karl Fischer Titration, CIC = Combustion Ion Chromatography