1、August 2009DEUTSCHE NORM English price group 6No part of this standard 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 sale for German Standards (DIN-Normen).ICS 75.160.20!$Y6“1541994www
2、.din.deDDIN EN 15769Ethanol as a blending component of petrol Determination of appearance Visual methodEnglish version of DIN EN 15769:2009-08Ethanol zur Verwendung als Blendkomponente in Ottokraftstoff Bestimmung des Aussehens Visuelle BegutachtungEnglische Fassung DIN EN 15769:2009-08www.beuth.deD
3、ocument comprises 8 pagesDIN EN 15769:2009-08 National foreword This standard has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin” (Secretariat: NEN, Netherlands). The responsible German body invo
4、lved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee), Technical Committee NA 062-06-81 AA Gasfrmige und flssige Kraft- und Brennstoffe, Schmierstoffe und verwandte Produkte mit minerallstmmiger, synthetischer oder biologischer Herkunft of the Fachaus
5、schuss Minerall- und Brennstoffnormung (FAM). The DIN Standard corresponding to the International Standard referred to in the EN is as follows: EN ISO 3696 DIN ISO 3696 National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and test methods 2 EUR
6、OPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 15769 April 2009 ICS 17.140.30; 93.100 English Version Ethanol as a blending component of petrol Determination of appearance Visual method thanol comme base de mlange lessence Dtermination de laspect Mthode visuelle Ethanol zur Verwendung als Blendko
7、mponente in Ottokraftstoff Bestimmung des Aussehens Visuelle Begutachtung This European Standard was approved by CEN on 19 March 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national st
8、andard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any oth
9、er language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia,
10、Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES
11、 KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15769:2009: EEN 15769:2009 (E) 2Contents PageForeword 3 1 Scope 4 2 Normative references 4 3 Terms and de
12、finitions .4 4 Principle 4 5 Apparatus .4 6 Sampling .5 7 Procedure .5 8 Interpretation 5 9 Expression of results 5 10 Statistical data 5 11 Test report 5 Bibliography 6 DIN EN 15769:2009-08 EN 15769:2009 (E) 3 Foreword This document (EN 15769:2009) has been prepared by Technical Committee CEN/TC 19
13、 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by
14、 October 2009, and conflicting national standards shall be withdrawn at the latest by October 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such p
15、atent rights. This document is developed to give a better determination of the requirement concerning appearance as used in European ethanol specifications, especially for automotive fuel application. It is derived from two existing regulatory methods for general alcohol 1 and spirits 2. According t
16、o the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit
17、huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15769:2009-08 EN 15769:2009 (E) 41 Scope This European Standard specifies a procedure for the determination of appearance of ethanol by visual meth
18、od. The method enables to determine colour and limpidity of ethanol. NOTE Automotive fuel standards require a fuel to be clear and bright, meaning absent of particles, respectively absent of haziness. For this document that requirement is combined into a limpidity requirement. 2 Normative references
19、 The following referenced documents are indispensable 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. EN ISO 3696, Water for analytical laboratory use
20、 Specification and test methods (ISO 3696:1987) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 turbidity degree of opacity of a fluid 3.2 limpidity clarity absence of turbidity 4 Principle The absence of colour and the limpidity (ef
21、fectively the absence of turbidity) are assessed visually by comparison with water against a white background and a black background. 5 Apparatus 5.1 Glass cylinders, colourless, 40 cm to 60 cm in height and 20 mm to 40 mm in diameter. NOTE 1 Tubes used for alcohol measurement with an alcoholmeter m
22、ay be used. NOTE 2 To check that the base of the glass cylinder is clean and colourless, one can place them empty on the white background (5.3). 5.2 Water, for analytical laboratory use, conforming to grade 3 of EN ISO 3696 5.3 Background, white, respectively black paper sheet. NOTE Paper of A4-size
23、 for laser printer application is sufficient. DIN EN 15769:2009-08 EN 15769:2009 (E) 5 6 Sampling Collect the sample (500 ml) in glass bottles, Teflon or silicon capped. Samples are stored at room temperature without any direct sun light prior to analysis. 7 Procedure Fill one cylinder (5.1) with sa
24、mple to a depth of approximately 40 cm and a second, comparison cylinder, with water (5.2) to the same height. Place the two glass cylinders on the white background (5.3) for determination of the colour and the limpidity. Observe the sample in a clear, well lighted room from above, i.e. through the
25、length of the cylinder, and compare it with the comparison cylinder. Repeat the observation on the black background. 8 Interpretation Assess the colour and limpidity of the sample when observed as set out in Clause 7. Determine visually, by comparison with the cylinder filled with water using both b
26、ackgrounds, if the sample is coloured or colourless like the water is. Determine visually, by comparison with the cylinder filled with water using both backgrounds, if the sample is turbid or clear like the water is. 9 Expression of results Report the observation: clear (limpid) or turbid, colourles
27、s or coloured. 10 Statistical data A round robin based on colouring with sunset yellow and initiating turbidity by adding barium chloride has given the following results: a) Colour: 50 % of good results at 0,5 ppm, and 100 % at 2 ppm, b) Turbidity: 100 % of good results at 50 ppm. 11 Test report The
28、 test report shall specify: a) a reference to this European standard, i.e. EN 15769; b) all information necessary for the complete identification of the sample; c) the test results obtained (see 9); d) any deviation, by agreement or otherwise, from the procedure specified in this European Standard,
29、or regarded as optional, together with details of any incidents which may have influenced the test results; e) the date of the test. DIN EN 15769:2009-08 EN 15769:2009 (E) 6Bibliography 1 European Commission regulation (EC) N 625/2003: annex IV, Community analysis method for neutral alcohol Method 2: Evaluation of colour and/or clarity 2 AOAC, Official method for spirits “935.15” and for cordials and liqueurs “935.17” DIN EN 15769:2009-08
