Commission Regulation (EU) 2017/1151Show full title

ANNEX IX

SPECIFICATIONS OF REFERENCE FUELS U.K.

A. REFERENCE FUELS U.K.

1. Technical data on fuels for testing vehicles with positive-ignition engines U.K.

Type: Petrol (E10):

a 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.
b 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.
c 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.
d 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.
e Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The Ethanol used shall conform to EN 15376.
f The actual sulphur content of the fuel used for the Type 1 test shall be reported.
g There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
h Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The Ethanol used shall conform to EN 15376.
Parameter	Unit	Limitsa		Test method
		Minimum	Maximum
Research octane number, RONb		95,0	98,0	EN ISO 5164
Motor octane number, MONc		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	60,0	EN 13016-1
Water content	% v/v		0,05	EN 12937
Appearance at – 7 C		Clear and bright
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 Periodd	minutes	480	—	EN ISO 7536
Oxygen contente	% m/m	3,3	3,7	EN 22854
Solvent washed gum (Existent gum content)	mg/100 ml	—	4	EN ISO 6246
Sulphur contentf	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 contentg	mg/l	—	1,3	ASTM D 3231
Ethanolh	% v/v	9,0	10,0	EN 22854

(²) Equivalent EN/ISO methods will be adopted when issued for properties listed above. U.K.

Type: Ethanol (E85)

a 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.
b 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.
c 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.
d The actual sulphur content of the fuel used for the Type 1 test shall be reported.
e Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.
f The unleaded petrol content can be determined as 100 minus the sum of the percentage content of water and alcohols
g There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
Parameter	Unit	Limitsa		Test methodb
		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		ISO 3675
Vapour pressure	kPa	40	60	EN ISO 13016-1 (DVPE)
Sulphur contentc d	mg/kg	—	10	EN ISO 20846 EN ISO 20884
Oxidation stability	minutes	360		EN ISO 7536
Existent gum content (solvent washed)	mg/100ml	—	5	EN-ISO 6246
Appearance This 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 alcoholse	% (V/V)	83	85	EN 1601 EN 13132 EN 14517
Higher alcohols (C3-C8)	% (V/V)	—	2
Methanol	% (V/V)		0,5
Petrolf	% (V/V)	Balance		EN 228
Phosphorus	mg/l	0,3g		ASTM D 3231
Water content	% (V/V)		0,3	ASTM E 1064
Inorganic chloride content	mg/l		1	ISO 6227
pHe		6,5	9	ASTM D 6423
Copper strip corrosion (3h at 50 C)	Rating	Class 1		EN ISO 2160
Acidity, (as acetic acid CH3COOH)	% (m/m)	—	0,005	ASTM D 1613
	(mg/l)	—	40
Carbon/hydrogen ratio		report
Carbon/oxygen ration		report

Type: LPG

a This method may not accurately determine the presence of corrosive materials if the sample contains corrosion inhibitors or other chemicals which diminish the corrosivity of the sample to the copper strip. Therefore, the addition of such compounds for the sole purpose of biasing the test method is prohibited.
Parameter	Unit	Fuel A	Fuel B	Test method
Composition:				ISO 7941
C3-content	% vol	30 ± 2	85 ± 2
C4-content	% vol	Balance	Balance
< C3, > C4	% vol	Maximum 2	Maximum 2
Olefins	% vol	Maximum 12	Maximum 15
Evaporation residue	mg/kg	Maximum 50	Maximum 50	prEN 15470
Water at 0 C		Free	Free	prEN 15469
Total sulphur content	mg/kg	Maximum 10	Maximum 10	ASTM 6667
Hydrogen sulphide		None	None	ISO 8819
Copper strip corrosion	Rating	Class 1	Class 1	ISO 6251a
Odour		Characteristic	Characteristic
Motor octane number		Minimum 89	Minimum 89	EN 589 Annex B

Type: NG/Biomethane

a Inerts (different from N2) + C2 + C2+.
b Value to be determined at 293,2 K (20 C) and 101,3 kPa.
c Value to be determined at 273,2 K (0 C) and 101,3 kPa.
d Inerts (different from N2) + C2; + C2+.
e Value to be determined at 293,2 K (20 C) and 101,3 kPa.
f Value to be determined at 273,2 K (0 C) and 101,3 kPa.
Characteristics	Units	Basis	Limits		Test method
			minimum	maximum
Reference fuel G20
Composition:
Methane	% mole	100	99	100	ISO 6974
Balancea	% mole	—	—	1	ISO 6974
N2	% mole				ISO 6974
Sulphur content	mg/m3 b	—	—	10	ISO 6326-5
Wobbe Index (net)	MJ/m3 c	48,2	47,2	49,2
Reference fuel G25
Composition:
Methane	% mole	86	84	88	ISO 6974
Balanced	% mole	—	—	1	ISO 6974
N2	% mole	14	12	16	ISO 6974
Sulphur content	mg/m3 e	—	—	10	ISO 6326-5
Wobbe Index (net)	MJ/m3 f	39,4	38,2	40,6

Type: Hydrogen for internal combustion engines

a Not to be condensed.
b Combined water, oxygen, nitrogen and argon: 1,900 μmol/mol.
c Combined water, oxygen, nitrogen and argon: 1,900 μmol/mol.
d Combined water, oxygen, nitrogen and argon: 1,900 μmol/mol.
e Combined water, oxygen, nitrogen and argon: 1,900 μmol/mol.
f The hydrogen shall not contain dust, sand, dirt, gums, oils, or other substances in an amount sufficient to damage the fuelling station equipment or the vehicle (engine) being fuelled.
Characteristics	Units	Limits		Test method
		minimum	maximum
Hydrogen purity	% mole	98	100	ISO 14687-1
Total hydrocarbon	μmol/mol	0	100	ISO 14687-1
Watera	μmol/mol	0	b	ISO 14687-1
Oxygen	μmol/mol	0	c	ISO 14687-1
Argon	μmol/mol	0	d	ISO 14687-1
Nitrogen	μmol/mol	0	e	ISO 14687-1
CO	μmol/mol	0	1	ISO 14687-1
Sulphur	μmol/mol	0	2	ISO 14687-1
Permanent particulatesf				ISO 14687-1

2. Technical data on fuels for testing vehicles with compression ignition engines U.K.

Type: Diesel (B7):

a 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.
b The range for cetane number is not in accordance with the requirements of a minimum range of 4R. However, in the case of a dispute between fuel supplier and fuel user, the terms of ISO 4259 may be used to resolve such disputes provided replicate measurements, of sufficient number to archive the necessary precision, are made in preference to single determinations.
c Even though oxidation stability is controlled, it is likely that shelf life will be limited. Advice shall be sought from the supplier as to storage conditions and life.
d FAME content to meet the specification of EN 14214.
Parameter	Unit	Limitsa		Test method
		Minimum	Maximum
Cetane Index		46,0		EN ISO 4264
Cetane numberb		52,0	56,0	EN ISO 5165
Density at 15 C	kg/m3	833,0	837,0	EN ISO 12185
Distillation:
— 50 % point	°C	245,0	—	EN ISO 3405
— 95 % point	°C	345,0	360,0	EN ISO 3405
— final boiling point	°C	—	370,0	EN ISO 3405
Flash point	°C	55	—	EN ISO 2719
Cloud point	°C	—	– 10	EN 23015
Viscosity at 40 C	mm2/s	2,30	3,30	EN ISO 3104
Polycyclic aromatic hydrocarbons	% m/m	2,0	4,0	EN 12916
Sulphur content	mg/kg	—	10,0	EN ISO 20846 EN ISO 20884
Copper corrosion 3 hrs, 50 C		—	Class 1	EN ISO 2160
Conradson carbon residue (10 % DR)	% m/m	—	0,20	EN ISO 10370
Ash content	% m/m	—	0,010	EN ISO 6245
Total contamination	mg/kg	—	24	EN 12662
Water content	mg/kg	—	200	EN ISO 12937
Acid number	mg KOH/g	—	0,10	EN ISO 6618
Lubricity (HFRR wear scan diameter at 60 C)	μm	—	400	EN ISO 12156
Oxidation stability at 110 Cc	h	20,0		EN 15751
FAMEd	% v/v	6,0	7,0	EN 14078

[F1 3. Technical data on fuels for testing fuel cell vehicles U.K.

Type: Hydrogen for fuel cell vehicles U.K.

a The hydrogen fuel index is determined by subtracting the ‘ total non-hydrogen gases ’ in this table, expressed in mole per cent, from 100 mole per cent.
b Total hydrocarbons include oxygenated organic species. Total hydrocarbons shall be measured on a carbon basis (μmolC/mol). Total hydrocarbons may exceed 2 μmol/mol due only to the presence of methane, in which case the summation of methane, nitrogen and argon shall not exceed 100 μmol/mol.
c As a minimum, total sulphur compounds include H 2 S, COS, CS 2 and mercaptans, which are typically found in natural gas.
d Total halogenated compounds include, for example, hydrogen bromide (HBr), hydrogen chloride (HCl), chlorine (Cl 2 ), and organic halides (R-X).
e Test method shall be documented.
For the constituents that are additive, such as total hydrocarbons and total sulfur compounds, the sum of the constituents are to be less than or equal to the acceptable limit.]
Characteristics	Units	Limits		Test Method
		minimum	maximum
Hydrogen fuel index a	% mole	99,97
Total non-hydrogen gases	μmol/mol		300
Maximum concentration of individual contaminants
Water (H 2 O)	μmol/mol		5	e
Total hydrocarbons b (Methane basis)	μmol/mol		2	e
Oxygen (O 2 )	μmol/mol		5	e
Helium (He)	μmol/mol		300	e
Total Nitrogen (N 2 ) and Argon (Ar) b	μmol/mol		100	e
Carbon dioxide (CO 2 )	μmol/mol		2	e
Carbon monoxide (CO)	μmol/mol		0,2	e
Total sulfur compounds c (H 2 S basis)	μmol/mol		0,004	e
Formaldehyde (HCHO)	μmol/mol		0,01	e
Formic acid (HCOOH)	μmol/mol		0,2	e
Ammonia (NH 3 )	μmol/mol		0,1	e
Total halogenated compounds d (Halogenate ion basis)	μmol/mol		0,05	e

Textual Amendments

F1 Substituted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance).

B. REFERENCE FUELS FOR TESTING EMISSIONS AT LOW AMBIENT TEMPERATURES — TYPE 6 TEST U.K.

Type: Petrol (E10):

a 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.
b 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.
c 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.
d 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.
e Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376.
f The actual sulphur content of the fuel used for the Type 6 test shall be reported.
g There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
h Ethanol is the only oxygenate that shall be intentionally added to the reference fuel. The ethanol used shall conform to EN 15376.
Parameter	Unit	Limitsa		Test method
		Minimum	Maximum
Research octane number, RONb		95,0	98,0	EN ISO 5164
Motor octane number, MONc		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 Periodd	minutes	480	—	EN ISO 7536
Oxygen contente	% m/m	3,3	3,7	EN 22854
Solvent washed gum (Existent gum content)	mg/100 ml	—	4	EN ISO 6246
Sulphur contentf	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 contentg	mg/l	—	1,3	ASTM D 3231
Ethanolh	% v/v	9,0	10,0	EN 22854

(²) Equivalent EN/ISO methods will be adopted when issued for properties listed above. U.K.

Type: Ethanol (E75)

a 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.
b 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.
c 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.
d The actual sulphur content of the fuel used for the Type 6 test shall be reported.
e Ethanol to meet specification of EN 15376 is the only oxygenate that shall be intentionally added to this reference fuel.
f The unleaded petrol content may be determined as 100 minus the sum of the percentage content of water and alcohols.
g There shall be no intentional addition of compounds containing phosphorus, iron, manganese, or lead to this reference fuel.
Parameter	Unit	Limitsa		Test methodb
		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 contentc d	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 alcoholse	% (V/V)	70	80	EN 1601 EN 13132 EN 14517
Higher alcohols (C3 – C8)	% (V/V)	—	2
Methanol		—	0,5
Petrolf	% (V/V)	Balance		EN 228
Phosphorus	mg/l	0,30g		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

Textual Amendments

F1 Substituted by Commission Regulation (EU) 2018/1832 of 5 November 2018 amending Directive 2007/46/EC of the European Parliament and of the Council, Commission Regulation (EC) No 692/2008 and Commission Regulation (EU) 2017/1151 for the purpose of improving the emission type approval tests and procedures for light passenger and commercial vehicles, including those for in-service conformity and real-driving emissions and introducing devices for monitoring the consumption of fuel and electric energy (Text with EEA relevance).