Norm

NEN-EN-ISO 5165:2018 en

Aardolieproducten - Bepaling van de ontstekingskwaliteit van dieselbrandstoffen - Cetaanmotormethode

106,87 129,31 Incl BTW

Over deze norm

Status Definitief
Aantal pagina's 20
Commissie Vloeibare en gasvormige brandstoffen, smeermiddelen en verwante producten
Gepubliceerd op 01-02-2018
Taal Engels
NEN-EN-ISO 5165 establishes the rating of diesel fuel oil in terms of an arbitrary scale of cetane numbers (CNs) using a standard single cylinder, four-stroke cycle, variable compression ratio, indirect injected diesel engine. The CN provides a measure of the ignition characteristics of diesel fuel oil in compression ignition engines. The CN is determined at constant speed in a pre-combustion chamber-type compression ignition test engine. However, the relationship of test engine performance to full scale, variable speed and variable load engines is not completely understood. This document is applicable for the entire scale range from 0 CN to 100 CN but typical testing is in the range of 30 CN to 65 CN. An interlaboratory study executed by CEN in 2013 (10 samples in the range 52,4 CN to 73,8 CN)[1] confirmed that paraffinic diesel from synthesis or hydrotreatment, containing up to 7 % (V/V) fatty acid methyl ester (FAME) can be tested by this test method and that the precision is comparable to conventional fuels. This test can be used for unconventional fuels such as synthetics, vegetable oils, etc. However, the relationship to the performance of such materials in full scale engines is not completely understood. Samples with fluid properties that interfere with the gravity flow of fuel to the fuel pump or delivery through the injector nozzle are not suitable for rating by this method.

Details

ICS-code 75.160.20
Nederlandse titel Aardolieproducten - Bepaling van de ontstekingskwaliteit van dieselbrandstoffen - Cetaanmotormethode
Engelse titel Petroleum products - Determination of the ignition quality of diesel fuels - Cetane engine method
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