Division B REFERENCE FUELS FOR TESTING EMISSIONS AT LOW AMBIENT TEMPERATURES — TYPE 6 TEST
Type: Petrol (E10):
The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied. | ||||
A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with EN 228:2008. | ||||
A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with EN 228:2008. | ||||
The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilise refinery gasoline streams, but detergent/dispersive additives and solvent oils shall not be added. | ||||
Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376. | ||||
The actual sulphur content of the fuel used for the Type 6 test shall be reported. | ||||
There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel. | ||||
Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376. | ||||
| Parameter | Unit | Limitsf1 | Test method | |
|---|---|---|---|---|
| Minimum | Maximum | |||
| Research octane number, RONf2 | 95,0 | 98,0 | EN ISO 5164 | |
| Motor octane number, MONf3 | 85,0 | 89,0 | EN ISO 5163 | |
| Density at 15 C | kg/m3 | 743,0 | 756,0 | EN ISO 12185 |
| Vapour pressure (DVPE) | kPa | 56,0 | 95,0 | EN 13016-1 |
| Water content | max 0,05 % v/v Appearance at – 7 C: clear and bright | EN 12937 | ||
| Distillation: | ||||
— evaporated at 70 C | % v/v | 34,0 | 46,0 | EN ISO 3405 |
— evaporated at 100 C | % v/v | 54,0 | 62,0 | EN ISO 3405 |
— evaporated at 150 C | % v/v | 86,0 | 94,0 | EN ISO 3405 |
— final boiling point | °C | 170 | 195 | EN ISO 3405 |
| Residue | % v/v | — | 2,0 | EN ISO 3405 |
| Hydrocarbon analysis: | ||||
— olefins | % v/v | 6,0 | 13,0 | EN 22854 |
— aromatics | % v/v | 25,0 | 32,0 | EN 22854 |
— benzene | % v/v | — | 1,00 | EN 22854 EN 238 |
— saturates | % v/v | report | EN 22854 | |
| Carbon/hydrogen ratio | report | |||
| Carbon/oxygen ratio | report | |||
| Induction Periodf4 | minutes | 480 | — | EN ISO 7536 |
| Oxygen contentf5 | % m/m | 3,3 | 3,7 | EN 22854 |
Solvent washed gum (Existent gum content) | mg/100 ml | — | 4 | EN ISO 6246 |
| Sulphur contentf6 | mg/kg | — | 10 | EN ISO 20846 EN ISO 20884 |
| Copper corrosion 3 hrs, 50 C | — | class 1 | EN ISO 2160 | |
| Lead content | mg/l | — | 5 | EN 237 |
| Phosphorus contentf7 | mg/l | — | 1,3 | ASTM D 3231 |
| Ethanolf8 | % v/v | 9,0 | 10,0 | EN 22854 |
Type: Ethanol (E75)
The values referred to in the specifications are ‘true values’. When establishing the value limits, the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test were applied. When fixing a minimum value, a minimum difference of 2R above zero was taken into account. When fixing a maximum and minimum value, the minimum difference used was 4R (R = reproducibility). Notwithstanding this procedure, which is necessary for technical reasons, fuel manufacturers shall aim for a zero value where the stipulated maximum value is 2R and for the mean value for quotations of maximum and minimum limits. Where it is necessary to clarify whether fuel meets the requirements of the specifications, the ISO 4259 terms shall be applied. | ||||
In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision, described in EN ISO 4259 shall be used. | ||||
In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to the reference in the national annex of EN 228. | ||||
The actual sulphur content of the fuel used for the Type 6 test shall be reported. | ||||
Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel. | ||||
The unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols. | ||||
There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel. | ||||
| Parameter | Unit | Limitsf9 | Test methodf10 | |
|---|---|---|---|---|
| Minimum | Maximum | |||
| Research octane number, RON | 95 | — | EN ISO 5164 | |
| Motor octane number, MON | 85 | — | EN ISO 5163 | |
| Density at 15 C | kg/m3 | report | EN ISO 12185 | |
| Vapour pressure | kPa | 50 | 60 | EN ISO 13016-1 (DVPE) |
| Sulphur contentf11f12 | mg/kg | — | 10 | EN ISO 20846 EN ISO 20884 |
| Oxidation stability | minutes | 360 | — | EN ISO 7536 |
| Existent gum content (solvent washed) | mg/100ml | — | 4 | EN ISO 6246 |
| Appearance shall be determined at ambient temperature or 15 C whichever is higher | Clear and bright, visibly free of suspended or precipitated contaminants | Visual inspection | ||
| Ethanol and higher alcoholsf13 | % (V/V) | 70 | 80 | EN 1601 EN 13132 EN 14517 |
| Higher alcohols (C3 – C8) | % (V/V) | — | 2 | |
| Methanol | — | 0,5 | ||
| Petrolf14 | % (V/V) | Balance | EN 228 | |
| Phosphorus | mg/l | 0,30f15 | EN 15487 ASTM D 3231 | |
| Water content | % (V/V) | — | 0,3 | ASTM E 1064 EN 15489 |
| Inorganic chloride content | mg/l | — | 1 | ISO 6227 — EN 15492 |
| pHe | 6,50 | 9 | ASTM D 6423 EN 15490 | |
| Copper strip corrosion (3h at 50 C) | Rating | Class 1 | EN ISO 2160 | |
| Acidity (as acetic acid CH3COOH) | % (m/m) | 0,005 | ASTM D1613 EN 15491 | |
| mg/l | 40 | |||
| Carbon/hydrogen ration | report | |||
| Carbon/oxygen ration | report | |||
Annotations
Footnotes
- f1
The values quoted in the specifications are ‘true values’. In establishment of their limit values the terms of ISO 4259 Petroleum products - Determination and application of precision data in relation to methods of test have been applied and in fixing a minimum value, a minimum difference of 2R above zero has been taken into account; in fixing a maximum and minimum value, the minimum difference is 4R (R = reproducibility). Notwithstanding this measure, which is necessary for technical reasons, the manufacturer of fuels shall nevertheless aim at a zero value where the stipulated maximum value is 2R and at the mean value in the case of quotations of maximum and minimum limits. Should it be necessary to clarify whether a fuel meets the requirements of the specifications, the terms of ISO 4259 shall be applied.
- f2
A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with EN 228:2008.
- f3
A correction factor of 0,2 for MON and RON shall be subtracted for the calculation of the final result in accordance with EN 228:2008.
- f4
The fuel may contain oxidation inhibitors and metal deactivators normally used to stabilise refinery gasoline streams, but detergent/dispersive additives and solvent oils shall not be added.
- f5
Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376.
- f6
The actual sulphur content of the fuel used for the Type 6 test shall be reported.
- f7
There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
- f8
Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376.
- f9
The values referred to in the specifications are ‘true values’. When establishing the value limits, the terms of ISO 4259 Petroleum products — Determination and application of precision data in relation to methods of test were applied. When fixing a minimum value, a minimum difference of 2R above zero was taken into account. When fixing a maximum and minimum value, the minimum difference used was 4R (R = reproducibility). Notwithstanding this procedure, which is necessary for technical reasons, fuel manufacturers shall aim for a zero value where the stipulated maximum value is 2R and for the mean value for quotations of maximum and minimum limits. Where it is necessary to clarify whether fuel meets the requirements of the specifications, the ISO 4259 terms shall be applied.
- f10
In cases of dispute, the procedures for resolving the dispute and interpretation of the results based on test method precision, described in EN ISO 4259 shall be used.
- f11
In cases of national dispute concerning sulphur content, either EN ISO 20846 or EN ISO 20884 shall be called up similar to the reference in the national annex of EN 228.
- f12
The actual sulphur content of the fuel used for the Type 6 test shall be reported.
- f13
Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.
- f14
The unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols.
- f15
There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.