CEN/TR 15367:2006
(Main)Petroleum products - Automotive diesel fuels - Guide for good housekeeping
Petroleum products - Automotive diesel fuels - Guide for good housekeeping
This document provides general guidance on diesel fuel housekeeping. It does not pre-empt national or local regulations. It only addresses the issues of contamination by water or sediment that may occur in the supply chain, during manufacturing, storage and/or transportation. It does not address contamination by other products nor does it address the possible contamination by water or sediment that may occur on board of vehicles.
NOTE Informative guidance on vehicle factors is presented in Annex A.
Mineralölerzeugnisse - Dieselkraftstoff für Kraftfahrzeuge - Leitfaden für eine gute Systemwartung
Dieses Dokument gibt allgemeine Ratschläge für eine gute Systemwartung von Dieselkraftstoff. Es beabsichtigt nicht, nationalen oder lokalen Regelungen zuvorzukommen. Das Dokument behandelt lediglich Verunreinigungsprobleme durch Wasser oder Sedimente, die in der Verteilerkette, bei der Produktion, bei der Lagerung oder beim Transport auftreten können. Es behandelt dabei weder durch Verunreinigungen mit anderen Produkten möglicherweise auftretende Probleme, noch solche, die durch Verunreinigungen mit Wasser oder Sedimenten im Kraftfahrzeug auftreten können.
ANMERKUNG Informationen zu Einflussfaktoren der Dieselfahrzeuge sind in Anhang A angegeben.
Produits pétroliers - Carburants diesels pour automobiles (Gazoles) - Guide pour une bonne maîtrise de la qualité du produit
Le présent document fournit un guide général sur la maintenance de la qualité des carburants diesels. Il ne se substitue pas aux réglementations locales ou nationales. Il aborde seulement les possibilités de contamination par l’eau ou les sédiments qui peuvent se présenter tout au long de la chaîne d’approvisionnement, aux stades de la fabrication, du stockage et/ou du transport. Il n’aborde pas les possibilités de contamination par d’autres produits ni celles de contamination par l’eau ou les sédiments à bord des véhicules.
NOTE Une information est donnée en Annexe A sur les facteurs liés aux véhicules.
Naftni proizvodi – Dizelsko gorivo – Vodilo za dobro gospodinjstvo
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2006
Naftni proizvodi – Dizelsko gorivo – Vodilo za dobro gospodinjstvo
Petroleum products - Automotive diesel fuels - Guide for good housekeeping
Mineralölerzeugnisse - Dieselkraftstoff für Kraftfahrzeuge - Leitfaden für eine gute
Systemwartung
Produits pétroliers - Carburants diesels pour automobiles (Gazoles) - Guide pour une
bonne maîtrise de la qualité du produit
Ta slovenski standard je istoveten z: CEN/TR 15367:2006
ICS:
03.100.50 Proizvodnja. Vodenje Production. Production
proizvodnje management
75.160.20 7HNRþDJRULYD Liquid fuels
75.200 2SUHPD]DVNODGLãþHQMH Petroleum products and
QDIWHQDIWQLKSURL]YRGRYLQ natural gas handling
]HPHOMVNHJDSOLQD equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
TECHNICAL REPORT
CEN/TR 15367
RAPPORT TECHNIQUE
TECHNISCHER BERICHT
April 2006
ICS 75.160.20; 75.200; 03.100.50
English Version
Petroleum products - Automotive diesel fuels - Guide for good
housekeeping
Produits pétroliers - Carburants diesels pour automobiles Mineralölerzeugnisse - Dieselkraftstoff für Kraftfahrzeuge -
(Gazoles) - Guide pour une bonne maîtrise de la qualité du Leitfaden für eine gute Systemwartung
produit
This Technical Report was approved by CEN on 4 March 2006. It has been drawn up by the Technical Committee CEN/TC 19.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, 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
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TR 15367:2006: E
worldwide for CEN national Members.
Contents Page
Foreword .3
Introduction.4
1 Scope .5
2 Background documentation.5
3 Supply chain definition.5
4 Potential sources of water and sediment in the supply chain.6
4.1 Water.6
4.2 Sediment.6
5 Housekeeping guidelines.6
5.1 Elements of good housekeeping .6
5.2 Detailed recommendations .7
5.3 Handling of other fuels .10
Annex A Diesel Vehicle Factors .11
Annex B After-market additives.12
Foreword
This document (CEN/TR 15367:2006) 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.
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 patent rights.
Introduction
During its meeting held in Cannes on 27 June 2003, WG 24 "Automotive diesel" decided that a guidance
document on good housekeeping could be instrumental in prevention of potential motoring problems caused
by contamination in the supply chain. This was endorsed by CEN/TC 19 resolution 24.5. The work 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, best practice 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 it’s way to the customer.
There will be more than one method or procedure to handle many of the potential contamination issues
throughout the distribution chain. The advice in this document outlines the 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 should be defined using a Total
Quality Assurance methodology.
1 Scope
This document provides general guidance on diesel fuel housekeeping. It does not pre-empt national or local
regulations. It only addresses the issues of contamination by water or sediment that may occur in the supply
chain, during manufacturing, storage and/or transportation. It does not address contamination by other
products nor does it address the possible contamination by water or sediment that may occur on board of
vehicles.
NOTE Informative guidance on vehicle factors is presented in Annex A.
2 Background documentation
The documents referenced below are useful for the application of this document. These are undated
references, the latest edition of the referenced document (including any amendments) applies.
Quality requirements for diesel are described in the following European standard:
EN 590, Automotive fuels – Diesel – Requirements and test methods.
Sampling and testing are critical steps in assessing fuel quality, in particular with regard to free-water and/or
sediment contamination issues. Information on sampling can be found in the following standards:
EN 14275, Automotive fuels — Assessment of petrol and diesel quality — Sampling from retail site pumps
and commercial site fuel dispensers
EN ISO 3170, Petroleum liquids – Manual sampling (ISO 3170:2004).
EN ISO 3171, Petroleum liquids – Automatic pipeline sampling (ISO 3171:1988).
UST Rules: EU member states requirements for Underground Storage Tanks differ. In most countries,
specifications exist for tank construction, corrosion protection and leak detection. These regulations have
been set mainly from a safety and environmental protection point of view but also serve to avoid product
contamination.
3 Supply chain definition
For the purpose of this document the supply chain is considered to consist of the following four parts:
refineries,
terminals,
filling stations (including retail and industrial customer sites), and
transportation from refineries to terminals and from terminals to filling stations.
Information on useful additives beyond the supply chain is given in Annex B.
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 can be a contributory cause of corrosion and biological contamination. 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 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.
4.2 Sediment
Sediment may consist of rust, dirt, dust, oxidation products and biological growth. These may form over a
longer period of time.
5 Housekeeping guidelines
5.1 Elements of good housekeeping
5.1.1 Operations
Proper attention to detail during all operating activities from product manufacturing to final delivery is essential
for guaranteeing product quality. There should therefore 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 are taking place as a result of new regulations or 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
procedures.
If the use of chemicals is considered anywhere in the supply chain for housekeeping purposes (e.g. corrosion
protection or biological disinfection) 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 of existing hardware along the supply chain vary widely and it is possible to control product
quality properly with differently engineered installations. Quality control is however much easier if hardware is
designed to facilitate good housekeeping as described in the following sections.
5.1.3 Maintenance
No matter how well designed an installation may be, if it is not inspected and maintained properly, equipment
faults will develop over time which may eventually affect the ability of the operator to maintain product quality
at the required level.
5.2 Detailed recommendations
NOTE Recommendations are split into four sections for refineries, terminals, filling stations and transportation, each
covering various elements. They represent current industry experience and are therefore based on handling of
predominantly hydrocarbon diesel fuels.
5.2.1 Refineries
5.2.1.1 Testing
All batches of diesel 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-line haze meters may be used. The product must meet the water
content and total contamination requirements of EN 590.
Where a sample is not found to be visually acceptable, it should be analysed to quantify the problem. Analysis
at this point would help any issues to be resolved at the refinery and avoid the problem becoming more
widespread.
Test records should be kept for a sufficient period to cover market needs.
Product imports should be tested using the same approach as recommended for terminals (see below).
5.2.1.2 Sampling
Upper, middle and lower samples should be taken 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.
No special requirements are specified with respect to settling time, after blending, before sampling. If product
samples do not satisfy the visual appearance, water content or sediment tests, allowing time for settling is one
measure that can be employed to bring the product on specification.
5.2.1.3 Operations
Although some storage tanks have floating off-take points, most have fixed off-takes so procedures to avoid
build-up of water bottoms are essential. 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 facility to drain off water
as required) 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.
Diesel tanks should also be checked periodically for the presence of bacteriological 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 cure, and is best achieved by good water management.
5.2.1.4 Hardware requirements
New tanks should be designed to optimise water draw-off capability and be fitted with anti-swirl systems to
minimise mixing of tank bottoms during filling.
They should also have convenient facilities for taking three samples.
An upper sample at one-sixth of the depth of liquid below the maximum level;
A middle sample halfway down the depth of the liquid;
A 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 on details
of tank configuration, including the height of the off-take point.
Filtration of final product is not generally necessary to control water and sediment. Filters may be installed as
an additional safeguard in some situations.
5.2.1.5 Maintenance
Tank cleaning is a major operation, which requires complete draining of the tank. It is therefore only carried
out periodically, normally on a schedule of several years, possibly coinciding with (statutory) inspection and
maintenance requirements.
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