BS EN 14274:2013 pdf download
BS EN 14274:2013 pdf download.Automotive fuels —Assessment of petrol and diesel quality ——Fuel quality monitoring system(FQMS).
4 Information required to set up the FQMS
The information specified in this clause as a requirement for setting up the FOMS is basically divided into two sets. The first set, described In 4.1. spedfies the requirement for a working list which contains all the locations from which samples are to be drawn. The second set, described In entries 4.2 to 4.5. specifies the need for information about how the fuel vokimes being placed on the market are dispensed across the country. This information is needed in order to make the results of the FOMS representative for the whole country. The information In entries 4.2 104.5 shoukl be applied in a step-wise fashion with decreasing preference in the listed order, depending on the data available in the Member State.
4.1 Requirement for a working list.
A 1st of retail sItes (3.3.1) and commercial sites (3.3.2) where automotive fuels are dispensed. TIls 1st shall contain information about the reon (see 5.2) In vA’ech the site Is located. This 1st shall be updated each year. The retail sites may be further subdivided into man oil company sates. super-lhypermarket sites and independently owned sites, provided that al necessary information detailed elsewhere in this European standard is available.
4.2 Amounts and regional distribution of automotive fuel dispensed.
NOTE Depending on the complexity of the FQMS to be used, the amounts of fuel czpensed on a regions basis could be required
4.2.1 Total amount of automotiv, fuel dispensed In th. whole country, including regional distribution, if available.
4.2.2 Total amount of each grade of petrol dispensed in the whole country, including regional distribution, if available,
4.2.3 Total amount of diesel fuel dispensed.
4.3 Sources of the fuel and Its supply and distribution patterns, it applicable,
4.4 Population size and regional distribution, If applicable.
4.5 Number of vehicles and their regional distribution, II applicable.
4.6 Organisations accredited for sampling and for analytical work.
Organisatlons conducting sampling, testing and analyses required for monltonng fuel quality In the market, shall demonstrate their competence by complying with the minimum criteria set out in Annez B. For sampling of fuel, or volatile materials, the organisation should be accredited for using EN 14275. A list of accredited laboratories, qualified to carry out the tests required for the FOMS should be compiled and maintained by the national accreditation body of the Member Stale or its nominated alternate. A list of accredited laboratories or organisations for the sampling should be compiled and maintaned as well.
5 Setting up the FQMS
5.1 Country size
Using the criteria of the amount of fuel dispensed, a decision shal be made whether the Member Slate is a large- size or small-size country (3.2).
5.52 Model A — macro regions
The regions Mthin a country are grouped (preserving some geographical identity) into macro regions so that they have similar total sales volumes relative to each other and also about the same number of different supply sources (measured by the variability factor. see 3.9). This approach is recommended for all countries as it is designed to capture fuel variation efficiently and hence requires a smaller total number of samples, as reflected in Table 1
If geographical, administrative or other circumstances do not allow fuffilment of the requirements for the design of this preferred model, model B shall be considered the next best model.
In defining the macro regions, a country shal first list all the pnnclpal supply points of petrol and diesel fuel (I.e. refineries, in-land terminals and coastal terminals) within each proposed macro region.
The variability factor for a macro region takes account of the number of different fuel tes, which are distributed within the region, as well as the number of refinenes (R) and supply terminals (T) in that region.
EXAMPLE If, in a certwn region of this country, there is only one refinery (R) which supplies two terninals (T1 and T2). and if those three are the only supply ponts in that region, then the variability factor is 1. because the fuel type served in that region cones only from one produc5on site If, on the other hand, one of the two terminels (T2) Is supØied by another refinery (located outside the region), then the variability facior is 2.
Therefore, the variability factor is not simply the sum of all refinenes and terminals present In a certain region, but the number of different supply points that are supplying fuel from different sources.
Once these variability factors have been defined for ead’i geographical or political region in the country, the regions shall be grouped into macro regions with approximately the same total variability factor and same total volumes in each macro region, thereby ensuring that the sampling proportional to fuel volumes also captures fuel variability.
