1、PUBLISHED DOCUMENT PD CEN/TR 15367-2:2007 Petroleum products Guide for good housekeeping Part 2: Automotive petrol fuels ICS 03.100.50; 75.160.20; 75.200 PD CEN/TR 15367-2:2007 This Published Document was published under the authority of the Standards Policy and Strategy Committee on 30 November 200
2、7 BSI 2007 ISBN 978 0 580 60779 0 National foreword This Published Document is the UK implementation of CEN/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 requ
3、est to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Amendments issued since publication Amd. No. Date CommentsTECHNICALREPORT RAPPORTTECHNIQUE TECHNISCHERBERICHT CEN/TR153672 March2007 ICS75
4、.160.20;75.200;03.100.50 EnglishVersion PetroleumproductsGuideforgoodhousekeepingPart2: Automotivepetrolfuels ProduitsptroliersGuidepourunebonnematrisedela qualitduproduitPartie2:Carburantsessencespour automobiles MinerallerzeugnisseLeitfadenfreinegute SystemwartungTeil2:OttokraftstoffefrKraftfahrze
5、uge ThisTechnicalReportwasapprovedbyCENon13February2007.IthasbeendrawnupbytheTechnicalCommitteeCEN/TC19. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Mal
6、ta,Netherlands,Norway,Poland,P ortugal, Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2007CEN Allrightsofexploitationinanyformandbyanymeans
7、reserved worldwideforCENnationalMembers. Ref.No.CEN/TR153672:2007: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 guidelines .6 5.1 Ele
8、ments 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 document (CEN/TR 153
9、67-2:2007) 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 Petroleum products -
10、 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 specifically addr
11、ess 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 enquiry on this
12、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 15367:2006 “Petroleum pro
13、ducts 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 practice is to make
14、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 issues throughout the
15、 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 chain be defined usi
16、ng 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 chain during manu
17、facture, 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 References The following
18、 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 and test methods
19、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 industrial custom
20、er 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 free water, which
21、 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 due to ingress as
22、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 management is essential.
23、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 operating activities fro
24、m 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 quality changes a
25、re 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 existing operating
26、 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 Age and design
27、 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 sections. 5.1.3 Ma
28、intenance 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 Recommendations are s
29、plit 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 later described in
30、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 methods such as on-
31、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 more widespread.
32、 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 taken from fixed
33、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 respective test met
34、hods. 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. 5.2.2.3 Operation
35、s 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 passes through the
36、 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) should be estab
37、lished 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 water ingress. Tank
38、s 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 management. 5.2.2
39、.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 sample at one-sixth
40、 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 should be based
41、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 taken to avoid sta
42、tic 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 maintenance requirem
43、ents. 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 become contaminated
44、 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 need more care
45、ful 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 transport unit (
46、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 any case, base
47、d 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 do not satisfy t
48、he 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 t
49、erminal 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 those employed at refineries should be in place to monitor and co
