1、PUBLISHED DOCUMENTPD CEN/TR 15367-2:2007Petroleum products Guide for good housekeeping Part 2: Automotive petrol fuelsICS 03.100.50; 75.160.20; 75.200g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g
2、39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58PD CEN/TR 15367-2:2007This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 November 2007 BSI 2007ISBN 978 0 580 60779 0National forewordThis Published Document is the UK implementation of CEN/
3、TR 15367-2:2007.The UK participation in its preparation was entrusted to Technical Committee PTI/2, Liquid fuels.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract.
4、Users are responsible for its correct application.Amendments issued since publicationAmd. No. Date CommentsTECHNICAL REPORTRAPPORT TECHNIQUETECHNISCHER BERICHTCEN/TR 15367-2March 2007ICS 75.160.20; 75.200; 03.100.50English VersionPetroleum products - Guide for good housekeeping - Part 2:Automotive p
5、etrol fuelsProduits ptroliers - Guide pour une bonne matrise de laqualit du produit - Partie 2: Carburants essences pourautomobilesMinerallerzeugnisse - Leitfaden fr eine guteSystemwartung - Teil 2 : Ottokraftstoffe fr KraftfahrzeugeThis Technical Report was approved by CEN on 13 February 2007. It h
6、as been drawn up by the Technical Committee CEN/TC 19.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, P
7、oland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by a
8、ny means reservedworldwide for CEN national Members.Ref. No. CEN/TR 15367-2:2007: E2 Contents Page Foreword3 Introduction .4 1 Scope 5 2 Normative References.5 3 Supply chain definition .5 4 Potential sources of water and sediment in the supply chain5 4.1 Water .5 4.2 Sediment.5 5 Housekeeping guide
9、lines .6 5.1 Elements of good housekeeping .6 5.2 Detailed recommendations.6 5.3 Handling of biofuels 9 Annex A (normative) Petrol vehicle factors .11 A.1 General11 A.2 Fuel tank .11 A.3 Filters 11 Annex B (normative) After-market additives .12 Bibliography 13 CEN/TR 15367-2:20073 Foreword This docu
10、ment (CEN/TR 15367-2:2007) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the secretariat of which is held by NEN. CEN/TR 15367 consists of the following parts, under the general title Petr
11、oleum products - Guidelines for good housekeeping: Part 1: Automotive diesel fuels Part 2: Automotive petrol fuels This part of this standard describes the distribution of automotive fuels in general and petrol in specific detail. For guidance concerning diesel distribution, part 1 is published to s
12、pecifically address biodiesel or FAME. CEN/TR 15367-2:20074 Introduction During a meeting held in Oslo on June 1 2005 through June 3 2005, CEN/TC 19 decided to adopt the Preliminary Work Item “Fuels supply chain - Housekeeping guide for gasoline“ on its Work Programme with the intention to start an
13、enquiry on this CEN Technical Report in 2006. It was later decided to link this work directly with the already existing housekeeping guidelines for diesel fuel. The best option was to publish them as separate parts of the same CEN document, which is achieved by revising the original CEN/TR 15367:200
14、6 “Petroleum products Automotive Diesel Fuels Guide for good housekeeping“ as Part 1. The work on both documents has been carried-out with support from Concawe. Automotive fuel specifications generally apply at the point of delivery to the customer. To ensure the quality at this point, the best prac
15、tice is to make sure that the product meets specification when it is dispatched from the refinery and to have systems in place to ensure that it cannot go off-specification on its way to the customer. There will be more than one method or procedure to handle many of the potential contamination issue
16、s throughout the distribution chain, thus the advice in this document outlines principles to apply but does not specify the precise detail of the methods to be adopted in all cases. Nevertheless, it is strongly recommended that all the procedures or measures to be applied along the distribution chai
17、n be defined using a Total Quality Assurance methodology. CEN/TR 15367-2:20075 1 Scope This document provides general guidance on petrol fuel housekeeping. It does not pre-empt national or local regulations. It addresses the issues of contamination by water or sediment that may occur in the supply c
18、hain during manufacture, storage and/or transportation. It does not address contamination by other products, nor does it address possible contamination by water or sediment that may occur on board vehicles, however, an informative note on vehicle factors is presented in Annex A. 2 Normative Referenc
19、es 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 228, Automotive fuels Petrol Requirements a
20、nd test methods prEN 15376, Automotive fuels - Ethanol as a blending component for petrol - Requirements and test methods 3 Supply chain definition For the purposes of this document the supply chain consists of the following four parts: refineries, terminals, filling stations (including retail and i
21、ndustrial customer sites), and transportation from refineries to terminals and from terminals to filling stations. 4 Potential sources of water and sediment in the supply chain 4.1 Water Water may enter the product at various stages of the supply chain but only becomes an issue if it is present as f
22、ree water, which can be a contributory cause of corrosion. Entry points include: a) as dissolved water during manufacturing; this may become free water further down the supply chain depending on ambient conditions if the product is cooled so much that it reaches saturation point; b) as free water du
23、e to ingress as a result of e.g. heavy rainfall or through cracks in equipment; c) as water vapour (moist air) through vents followed by cooling/condensation on tank walls, including the vehicle tanks; As it is virtually impossible to stop water from entering the supply chain, proper water managemen
24、t is essential. 4.2 Sediment Sediment may consist of rust, dirt, dust, oxidation products and biological growth. These may form over a long period of time. CEN/TR 15367-2:20076 5 Housekeeping guidelines 5.1 Elements of good housekeeping 5.1.1 Operations Proper attention to detail during all operatin
25、g activities from product manufacturing to final delivery is essential to guarantee product quality. There should be operating procedures in place covering receipt, delivery, sampling, inspection, testing, and tank draining. These procedures should be reviewed and updated as required, when product q
26、uality changes are taking place as a result of new regulations or the introduction of new fuel types. It is essential that personnel involved at each link in the chain, both company employees and contractors, are properly trained so that they are aware of and understand the importance of applying ex
27、isting operating procedures. If the use of chemicals is considered anywhere in the supply chain for housekeeping purposes (e.g. corrosion protection) the potential impact on fuel quality and performance should be investigated thoroughly. Non-chemical solutions are generally preferred. 5.1.2 Hardware
28、 Age and design of existing hardware along the supply chain vary widely and it is possible to control product quality properly with differently engineered installations. Quality control, however, is much easier if hardware is designed to facilitate good housekeeping as described in the following sec
29、tions. 5.1.3 Maintenance No matter how well designed an installation may be, if it is not inspected and properly maintained, equipment faults will develop which may affect the ability of the operator to maintain product quality at the required level. 5.2 Detailed recommendations 5.2.1 General Recomm
30、endations are split into four sections, each covering various elements for refineries, terminals, filling stations and transportation. They represent current industry experience and are based on predominantly handling hydrocarbon petrol fuels. Special requirements may be necessary for bio-fuels late
31、r described in this document. 5.2.2 Refineries 5.2.2.1 Testing All batches of petrol fuel should be visually assessed, should not contain free water and should be free from visible sediment. When testing for visual appearance, the prevailing ambient temperature should be considered. Alternative meth
32、ods such as on-line haze meters may be used. The product must meet the appearance requirements of EN 228. When a sample is not visually acceptable, it should be analysed to quantify the problem. Analysis at this point enables any issues to be resolved at the refinery and avoid the problem becoming m
33、ore widespread. Test records should be kept for a sufficient period to cover market needs and regulatory requirements. Product imports should be tested using the same approach as recommended for terminals (see 5.2.3). CEN/TR 15367-2:20077 5.2.2.2 Sampling Upper, middle and lower samples should be ta
34、ken from fixed off-take storage tanks for visual assessment and analysis. All three samples should be examined for visual appearance, including confirmation that the blend is not layered. Composite samples may be used for the other routine specification tests unless otherwise specified in their resp
35、ective test methods. No special requirements are specified with respect to settling time, after blending and before sampling. If product samples do not satisfy the visual appearance requirements, allowing time for settling is one measure that can be employed to bring the product on specification. 5.
36、2.2.3 Operations Most petrol storage tanks have external floating roofs and fixed off-takes, so it is not unusual for small volumes of water to leak into the stored petrol as a result of rainfall. Procedures to avoid build-up of water bottoms are essential. The floating roof drain pipe typically pas
37、ses through the main tank volume and it is important to ensure that it does not leak into the petrol. Most storage tanks are flat bottom, though they can be cone-up or cone-down. Procedures to control water build-up (regular water bottoms checks and use of a facility to drain off water as required)
38、should be established based on local experience with the particular tank configuration, fuel production process and local climate. These procedures should ensure that water is not carried forward to the next stage of the supply chain. Dome covers on floating roof tanks are effective at reducing wate
39、r ingress. Tanks should also be checked periodically for biological infection and there should be a procedure to deal with such contamination in case it is detected. Once established, biological growth can be difficult to rectify prevention is better than a cure and is best achieved by good water ma
40、nagement. 5.2.2.4 Hardware requirements New tanks should be designed to minimise water ingress, optimise water draw-off capability and be fitted with anti-swirl systems to minimise mixing of tank bottoms during filling. They should also have a convenient facility for taking three samples: upper samp
41、le at one-sixth of the depth of liquid below the maximum level; middle sample halfway down the depth of the liquid; and lower sample at approximately one-sixth up from the bottom level, representing the product which will be drawn out of the off take system. The precise height for the lower sample s
42、hould be based on details of tank configuration including the height of the off-take point. Filtration of the final product is not generally necessary to control water and sediment. Filters may be installed as an additional safeguard in some situations. If filters are used, precautions should be tak
43、en to avoid static electricity build-up and potential ignitions. 5.2.2.5 Maintenance Tank cleaning is a major operation which requires completely draining the tank. It is only carried out periodically, normally on a schedule of several years, possibly coinciding with (statutory) inspection and maint
44、enance requirements. Good housekeeping can help to extend the periods between tank cleaning. CEN/TR 15367-2:20078 5.2.3 Terminals 5.2.3.1 General There should be a documented procedure for product sampling and quality monitoring on receipt. Receipt checks should confirm that the product has not beco
45、me contaminated with water or dirt. These principles also apply to product imports into refineries. 5.2.3.2 Testing Visual checks should be carried out on the quality of the product. Additional analysis may be carried out if needed. Batches delivered by barge and more especially by sea going vessels
46、 need more careful attention to conform to quality specifications. Test records should be kept for a sufficient period to cover market needs and regulatory requirements. 5.2.3.3 Sampling In order to avoid possible contamination of clean product tanks, sampling should be considered from: delivering t
47、ransport unit (e.g. barge) before discharging into storage tanks; product transfer to the receiving tank. In some cases, e.g. for pipeline deliveries, on-line or running samples may be monitored; and storage tank after receipt. As the receipt tank will be used for deliveries, it should be sampled in
48、 any case, based on upper/middle/lower samples as in the refinery situation. The quality of the existing product in the receipt tank, prior to transfer, should also be known. As at the refinery, no special requirements are specified with respect to settling time before sampling. If product samples d
49、o not satisfy the visual appearance requirements, allowing time for settling is one measure that can be employed to bring the product on specification. 5.2.3.4 Operations Normal practice would include that product is not dispatched from a running tank, i.e. a tank that is receiving product at the same time Where terminal operations require product delivery from a running tank; additional precautions should be taken to ensure that the quality is maintained, e.g. pre-delivery checks on the receipt tank and incoming product. Similar procedures to
