DIN 51625-2008 Automotive fuels - Ethanol Fuel - Requirements and test methods《汽车燃料 乙醇燃料 要求和试验方法》.pdf

1、August 2008DEUTSCHE NORM Normenausschuss Materialprfung (NMP) im DINDIN-SprachendienstEnglish price group 6No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sal

2、e for German Standards (DIN-Normen).ICS 75.160.20!$myS“1748648www.din.deDDIN 51625Automotive fuels Ethanol Fuel Requirements and test methodsEnglish translation of DIN 51625:2008-08Kraftstoffe fr Kraftfahrzeuge Ethanolkraftstoff Anforderungen und PrfverfahrenEnglische bersetzung von DIN 51625:2008-0

3、8Carburants pour automobiles Essence dthanol Exigences et mthodes dessaiTraduction anglaise de DIN 51625:2008-08www.beuth.deDocument comprises pages804.11 DIN 51625:2008-08 A comma is used as the decimal marker. Contents Page Foreword. 3 1 Scope . 3 2 Normative references . 3 3 Sampling 4 4 Marking

4、4 5 Requirements and test methods. 5 5.1 General requirements. 5 5.2 Dyes and markers. 5 5.3 Additives 5 5.4 Phosphorus, iron, manganese, lead. 5 5.5 Climatically dependent requirements. 5 5.6 Precision and dispute 7 Bibliography . 8 2 DIN 51625:2008-08 Foreword This standard has been prepared by Wo

5、rking Committee NA 062-06-32 AA Anforderungen an flssige Kraftstoffe of the Fachausschuss Minerall- und Brennstoffnormung (FAM) of the Normenausschuss Materialprfung (Materials Testing Standards Committee). 1 Scope This standard specifies the requirements and test methods for ethanol-containing fuel

6、s with ethanol as principal component which are used in motors designed to be run on ethanol. In general, such fuels are designated with the code E85. In accordance with the Biokraftstoffquotengesetz (Biofuels Quota Law) 4, the ethanol content of this fuel can be in the range between approximately 7

7、0 % (V/V) and approximately 86 % (V/V), depending on the seasons climatic conditions. NOTE For the purposes of this standard, % (m/m) and % (V/V) are used to represent the percentage by mass and the percentage by volume respectively. 2 Normative references The following referenced documents are indi

8、spensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. E DIN 51627-3, Automotive fuels Test methods Part 3: GC determination of contents of alcohol

9、s, ethers and petrol in ethanol fuel E DIN 51627-4, Automotive fuels Test methods Part 4: Determination of electrical conductivity in ethanol fuel DIN 51750-1, Sampling of petroleum products General DIN EN 228, Automotive fuels Unleaded petrol Requirements and test methods DIN EN 13016-1, Liquid pet

10、roleum products Vapour pressure Part 1: Determination of air saturated vapour pressure (ASVP) and calculated dry vapour pressure equivalent (DVPE) DIN EN 15485, Ethanol as a blending component for petrol Determination of sulfur content Wavelength dispersive X-ray fluorescence spectrometric method DI

11、N EN 15486, Ethanol as a blending component for petrol Determination of sulfur content Ultraviolet fluorescence method DIN EN 15487, Ethanol as a blending component for petrol Determination of phosphorus content Ammonium molybdate spectrometric method DIN EN 15488, Ethanol as a blending component fo

12、r petrol Determination of copper content Graphite furnace atomic absorption spectrometric method 3 DIN 51625:2008-08 DIN EN 15489, Ethanol as a blending component for petrol Determination of water content Karl Fischer coulometric titration method DIN EN 15490, Ethanol as a blending component for pet

13、rol Determination of pHe DIN EN 15491, Ethanol as a blending component for petrol Determination of total acidity Colour indicator titration method DIN EN 15492, Ethanol as a blending component for petrol Determination of inorganic chloride and sulfate content Ion chromatographic method E DIN EN 1569

14、2, Ethanol as a blending component for petrol Determination of water content Karl Fischer potentiometric titration method DIN EN ISO 2160, Petroleum products Corrosiveness to copper Copper strip test DIN EN ISO 3170, Petroleum liquids Manual sampling DIN EN ISO 3405, Petroleum products Determination

15、 of distillation characteristics at atmospheric pressure DIN EN ISO 4259, Petroleum products Determination and application of precision data in relation to methods of test DIN EN ISO 5163, Petroleum products Determination of knock characteristics of motor and aviation fuels Motor method DIN EN ISO 5

16、164, Petroleum products Determination of knock characteristics of motor fuels Research method DIN EN ISO 6246, Petroleum products Gum content of light and middle distillate fuels Jet evaporation method DIN EN ISO 7536, Petroleum products Determination of oxidation stability of gasoline Induction per

17、iod method 3 Sampling If not otherwise specified, sampling shall be carried out in accordance with DIN EN ISO 3170 or DIN 51750-1. Particular attention shall be paid to the cleanliness of the containers in order to prevent contamination, for example by sulfur compounds or phosphorus (detergents). Du

18、ring sampling it shall be ensured that the sample does not absorb additional water from the atmosphere. It is highly recommended to rinse the sample containers (several times, where appropriate) with the product to be examined prior to sampling. Instead of glass bottles preferably PE (polyethylene),

19、 PP (polypropylene) or steel containers shall be used. For particular tests (e.g. determination of electrical conductivity) the specific information relating to sampling given in the relevant test standard shall be strictly adhered to. 4 Marking Ethanol fuel E85 at the service station shall be marke

20、d clearly and unambiguously in accordance with the specifications given in the national regulations. Corresponding regulations are found in the BImSchV 10 1 and the associated ordinance 2. 4 DIN 51625:2008-08 5 Requirements and test methods 5.1 General requirements Ethanol fuel E85 is presumed to be

21、 in compliance with the requirements of this standard if all properties described in 5.1 to 5.5 and all limits given in Tables 1 and 2 are adhered to. The limits apply to samples taken from a dispensing pump. In cases of dispute, the procedures for resolving the dispute described in DIN EN ISO 4259

22、(see 5.6), shall be used. For arbitration purposes, the biogenic origin of the ethanol used can be determined using the C-14 method (radiocarbon dating) 3. Because of the complex equipment and long measurement times it is, however, recommended that the use of this method be confined to cases of disp

23、ute where clarification cannot otherwise be achieved. 5.2 Dyes and markers The use of dyes and markers is allowed provided they do not cause harmful side effects. 5.3 Additives In order to improve the performance quality, the use of additives is allowed. Suitable fuel additives without known harmful

24、 side effects are allowed in the appropriate amount, to help to avoid deterioration of driveability and emissions control durability, provided that there is no interference with other clauses of this standard. Other technical means with equivalent effect may also be used. 5.4 Phosphorus, iron, manga

25、nese, lead In order to protect automotive catalyst systems, compounds containing phosphorus, iron, manganese or lead, or any other inorganic compound, shall not be included in ethanol fuel E85. 5.5 Climatically dependent requirements 5.5.1 Water tolerance Given the known potential for ethanol fuel E

26、85 to absorb water, suppliers shall ensure that no water segregation, in particular by the formation of condensate, occurs. NOTE The solubility of hydrocarbons in ethanol fuel E85 and in mixtures with unleaded petrol decreases as a result of falling temperatures and increasing water content. Phase s

27、eparation may have a negative effect on cold vehicle driveability and the driveability of vehicles which can be fuelled by either petrol or ethanol fuel E85. 5.5.2 Volatility requirements To meet hot and cold vehicle driveability requirements for Germany as a function of the prevalent climatic condi

28、tions, two volatility classes are defined in Table 2. Class A shall apply during summer, starting 1 May and ending 30 September. Class B shall apply during winter, starting 16 November and ending 15 March. Since logistics render it inevitable that the two classes will mix, the limits of class A or c

29、lass B shall be adhered to during the transition periods from 1 October to 15 November and from 16 March to 30 April. During the market launch phase up to 2011, the transition periods may be longer due to lower sales. If required, transition to winter shall take place earlier. 5 DIN 51625:2008-08 Ta

30、ble 1 General requirements and test methods Limits Property Units min. max. Test methodaResearch Octane Number, RONb 104 DIN EN ISO 5164 Motor Octane Number, MONb 88 DIN EN ISO 5163 Sulfur content mg/kg 10,0 DIN EN 15485 or DIN EN 15486 Oxidation stability minutes 360 DIN EN ISO 7536 Existent gum co

31、ntent (solvent washed) mg/100 ml 5 DIN EN ISO 6246 Appearance free from aqueous phases and solids visual Higher alcohols (C3 to C5) % (V/V) 2,00 E DIN 51627-3 Methanol % (V/V) 1,00 E DIN 51627-3 Ethers (5 or more C atoms) % (V/V) 5,20 E DIN 51627-3 Phosphorus mg/l 0,20 DIN EN 15487 Copper mg/kg 0,10

32、0 DIN EN 15488 Water content % (m/m) 0,300 DIN EN 15489 or E DIN EN 15692 Chloride mg/l 1,0 DIN EN 15492 Sulfate mg/l 1,0 DIN EN 15492 Conductivity, determined at 25 C S/cm 2,50 E DIN 51627-4 Copper strip corrosion (3 h at 50 C) rating No higher than 1 DIN EN ISO 2160 Corrosion potentialc, measured

33、as pHE 6,5 to 9 DIN EN 15490 % (m/m) 0,005 0 Acid (calculated as acetic acid) mg/l 40 DIN EN 15491 aSee also 5.6.1. bThe measurement of RON and MON may cause difficulties if the test is carried out without adjustments. Therefore, the setting of the air/fuel mixture and the mixture temperature for E8

34、5 shall be adjusted. To achieve complete evaporation, a lower air quantity and a higher temperature are necessary. Further information can be found in DIN 51756-7. cDue to inadequate precision, the test method specified is unsuitable as an arbitration method. For this reason the test method will be

35、checked and a more suitable test method introduced as an alternative to predict the corrosion potential. 6 DIN 51625:2008-08 5.6 Precision and dispute 5.6.1 All test methods referred to in this standard include a precision statement. In cases of dispute, the procedures for resolving the dispute desc

36、ribed in DIN EN ISO 4259 shall be used. The interpretation of the results shall be based on the precision of the test methods specified. 5.6.2 In cases of dispute concerning sulfur content, DIN EN 15485 or DIN EN 15486 shall be used. Table 2 Climatic requirements depending on the season Property Uni

37、ts Class A (Summer) Class B (Winter) Test methodaGroup contents of ethanol and higher alcohols % (V/V), min. % (V/V), max. 75 86 70 80 E DIN 51627-3 Content of unleaded petrolb% (V/V), max. 25 30 E DIN 51627-3 Vapour pressure (DVPE) kPa, min. kPa, max. 35,0 60,0 50,0 90,0 DIN EN 13016-1 Final Boilin

38、g Point C, max. 210 210 DIN EN ISO 3405cDistillation residue % (V/V), max. 2 2 DIN EN ISO 3405caSee also 5.6.1. b Except for the vapour pressure and the content of alcohols, the added petrol shall comply with the requirements specified in DIN EN 228. cDue to the specific problem as regards the disti

39、llation characteristics of E85, automatic distillation may yield incorrect results for the final boiling point and the distillation residue. In case of doubt, distillation should be checked using the manual method. 7 DIN 51625:2008-08 8 Bibliography 1 BImSchV 10, Zehnte Verordnung zur Durchfhrung de

40、s Bundes-Immissionsschutzgesetzes (Verordnung ber die Beschaffenheit und die Auszeichnung der Qualitten von Kraftstoffen 10. BImSchV) (Tenth ordinance on the implementation of the Federal Immission Control Act (Ordinance on the quality and marking of fuels) as of 24 June 2004, BGBI (German Federal L

41、aw Gazette) I, 2004, No. 30, pp. 134213471)2 Allgemeine Verwaltungsvorschrift zur Durchfhrung der 10. Verordnung zur Durchfhrung des Bundes-Immissionsschutzgesetzes (General administrative regulation on the implementation of the Federal Immission Control Act) 3 C-14 Isotopenanalyse (C-14 method (rad

42、iocarbon dating): see for instance method 13 in the Official Journal of the European Union L90/28 of 8 April 2003 (EC Regulation 625/2003) 4 BioKraftQuG, Gesetz zur Einfhrung einer Biokraftstoffquote durch nderung des Bundes-immissionsschutzgesetzes und zur nderung energie- und stromsteuerrechtlicher Vorschriften (Biokraftstoffquotengesetz BioKraftQuG) (Biofuels Quota Law) as of 18 December 2006, BGBl (German Federal Law Gazette) I, No. 62, pp. 318031881)1) Recorded in the DITR database of DIN Software GmbH, obtainable from Beuth Verlag GmbH, 10772 Berlin.